Stratigraphic Distribution of 

Fusulinid Foraminifera from the 

Manzano Mountains, New Mexico 

~ 

U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1446 
Stratigraphic Distribution of 

Fusulinid Foraminifera from the 

Manzano Mountains, New Mexico 

By DONALD A. MYERS 

U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1446-A,B 

Stratigraphic and paleontological study of 

Pennsylvanian and Permian fusulinid Foraminifera 

from the Manzano Mountains, New Mexico 

UNITED STATES GOVERNMENT PRI,NTING OFFICE, WASHINGTON 1988 
DEPARTMENT OF THE INTERIOR 

DONALD PAUL HODEL, Secretary 

U.S. GEOLOGICAL SURVEY 

Dallas L. Peck, Director 

Library of Congress Cataloging-in-Publication Data 

Myers, Donald A., 1921-

Stratigraphic distribution of fusulinid foraminifera from the Manzano Mountains, New Mexico 

(U.S. Geological Survey professional paper; 1446 A-B) 

Includes bibliographies. 

Contents: Stratigraphic distribution of some fusulinids from the Wild Cow and Bursum formations, Manzano 

Mountains, New Mexico-Stratigraphic distribution of some Pennsylvanian fusulinids from the Sandia Formation and the Los Moyos Limestone, Manzano Mountains, New Mexico. 

Supt. of Docs. no.: I 19.16:1446A-B 

1. Geology, Stratigraphic-Pennsylvanian. 2. Geology, Stratigraphic-Permian. 3. Fusulinidae. 

4. Geology-New Mexico-Manzano Mountains. 5. Paleontology-New Mexico-Manzano Mountains. 

I. Title. II. Series: Geological Survey professional paper; 1446. 

QE673.M94 1988 551.7 '52 '09789 86-600127 

For sale by the 

Books and Open-File Reports Section 

U.S. Geological Survey 

Federal Center 

Box 25425 

Denver, CO 80225 
Stratigraphic Distribution of some 

Pennsylvanian Fusulinids from the 

Sandia Formation and the 

Los Moyos Limestone, 

Manzano Mountains, New Mexico 

By DONALD A. MYERS 

STRATIGRAPHIC DISTRIBUTION OF FUSULINID FORAMINIFERA FROM 

THE MANZANO MOUNTAINS, NEW MEXICO 

U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1446-A 

Summarizes the stratigraphic distribution of fusulinid 

Foraminifera from the Pennsylvanian Sandia Formation and the 

Los Moyos Limestone in the Manzano Mountains, New Mexico 
CONTENTS 

Page Page 

Abstract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Fusulinids from the Los Moyos Limestone-Continued 

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Assemblage subzone of B. novamexicana . . . . . . . . . . . . . . 7 

Fusulinids from the Sandia Formation . . . . . . . . . . . . . . . . . . 5 Assemblage subzone of B. rockymontana . . . . . . . . . . . . . . 7 

Stratigraphic summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Assemblage subzone of B. sulphurensis . . . . . . . . . . . . . . . 8 

Assemblage subzone of Fusulinella devexa . . . . . . . . . . . . 5 Faunal correlations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 

Assemblage subzone of F. whitensis . . . . . . . . . . . . . . . . . . 5 Zone of Fusulinella . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 

Fusulinids from the Los Moyos Limestone . . . . . . . . . . . . . . 6 Zone of Beedeina . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 

Stratigraphic summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Collecting localities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 

Assemblage subzone of Beedeina insolita . . . . . . . . . . . . . . 7 References cited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 

ILLUSTRATIONS 

[Plates follow References Cited] 

Page 

PLATE 1. Fusulinids from the Sandia Formation and Los Moyos Limestone in the southern part of the Manzano Mountains 12 

2. Fusulinids from the Sandia Formation and Los Moyos Limestone in the central part of the Manzano Mountains . . 14 

3. Fusulinids from the Sandia Formation and Los Moyos Limestone in the northern part of the Manzano Mountains . 16 

4. Fusulinids from the upper part of the Los Moyos Limestone in the southern part of the Manzano Mountains . . . . . 18 

5. Fusulinids from the upper part of the Los Moyos Limestone in the northern part of the Manzano Mountains . . . . . 20 

FIGURE 1. Generalized geologic map of the Manzano Mountains, New Mexico . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 

2. Stratigraphic sections, fusulinid zones and assemblage subzones in Middle Pennsylvanian rocks, Manzano Mountains, 

New Mexico . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 

3. Explanation of stratigraphic sections on figure 2 and plates 1-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 
STRATIGRAPHIC DISTRIBUTION OF FUSULINID FORAMINIFERA 

FROM THE MANZANO MOUNTAINS, NEW MEXICO 

STRATIGRAPHIC DISTRIBUTION OF SOME l?ENNSYL V ANIAN FUSULINIDS 

FROM THE SANDIA FORMATION AND THE LOS MOYOS LIMESTONE, 

MANZANO MOUNTAINS, NEW MEXICO 

By DONALD A. MYERS 

ABSTRACT 

Fusulinid Foraminifera from Pennsylvanian strata in the Manzano 

Mountains, central New Mexico, indicate that the Sandia Formation 

(Atokan) lies in the zone of Fusulinella, and that the Los Moyos 

Limestone (Desmoinesian) lies mostly in the zone of Beedeina. Two 

assemblage subzones recognized in the Sandia Formation are those 

of Fusulinella devexa and F. whitensis. Four assemblage subzones 

recognized in the Los Moyos Limestone are those of Beedeina insolita, 

B. novamexicana, B. rockymontana, and B. sulphurensis. The presence 

of Eowaeringella in the uppermost beds of the Los Moyos Limestone 

indicates that the beds are of earliest Missourian age. 

INTRODUCTION 

The Manzano Mountains lie on the east side of the 

Rio Grande Valley and extend about 50 miles south 

from Albuquerque, New Mexico (fig. 1). The mountains 

are fault-block mountains, tilted east. They are composed of Pennsylvanian and Lower Permian rocks that 

rest on Precambrian rocks. Except for the Manzanita 

Mountains, included with the Manzano Mountains in 

this report, the west face of the Manzano Mountains 

is a near-vertical escarpment of Precambrian rocks with 

as much as 5,000 ft of relief. Except for local and minor 

exposures of Mississippian rocks, referred to as the Arroyo Penasco Group (Armstrong, 1967), the strata consist of a sequence of Pennsylvanian and Lower Permian 

rocks that have been assigned to the Sandia Formation 

and to the Madera Group (Myers, 1973). 

The study of fusulinids is important because large 

amounts of oil and gas have been found in rocks assigned to the Pennsylvanian and Permian Systems in 

which these fossils occur. Fusulinids have widespread 

geographic distribution and generally are found in abundance in these systems. They first appeared in Late 

Mississippian time; they flourished during Pennsylvanian and most of Permian time; and they became extinct slightly before the end of Permian time. Within 

this time span, evolutionary changes were continuous 

and great. The widespread geographic distribution, the 

great abundance of specimens, and the rapid evolution 

within this group of fossils serve to make the genera 

and species of fusulinids valuable for correlating the 

rocks that contain them. 

Much of the stratigraphic correlation in areas of 

marine Pennsylvanian and Permian rocks is based on 

age relations determined by study of fusulinids. 

Because fusulinids are small enough to be preserved 

intact in well cores and as identifiable fragments in cuttings, they provide an excellent tool to aid in determining the stratigraphic succession in subsurface rocks .. 

Comparison of fusulinids from subsurface rocks with 

those from outcropping rocks is an important method 

of establishing correlation between the two. 

With current and developing interest in the oil and gas 

potential of the Rio Grande valley and adjacent areas 

in New Mexico, the data presented herein will help the 

biostratigrapher working with subsurface rocks to 

establish correlation with outcropping Pennsylva.~ian 

and Permian rocks along the east side of the Rio Grande. 

The use of fusulinids as a stratigraphic tool depends, 

in part, upon knowledge of the rock-stratigraphic sequenc,e in areas from which fusulinid collections have 

been made. My studies in the Manzano Mountains have 

enabled me to obtain several hundred collections of 

fusulinid-bearing rocks from precisely defined positions 

in the rock-stratigraphic sequence. 

3 
4 

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FUSULINID FORAMINIFERA, MANZANO MOUNTAINS, NEW MEXICO 

EXPLANATION 

~ ~ Surficial Deposits 

(Quaternary) 

Abo Formation 

(Early Permian) 

~ ~ Bursum Formation 

(Wolfcampian) 

~ ~ Wild Cow Formation 

(Early Permian and 

Late Pennsylvanian) 

G Los Moyos Limestone 

(Desmoinesian) 

Sandia Formation 

(Atokan) 

~ Precambrian 

---- Contact, approximately located 

----r--- Fault, dashed where concealed. 

Bar and ball on downthrown side 

A A Reverse fault, sawteeth on 

upthrown side 

6 10 MILES 

I I I I I 

6 10 KILOMETER 

"ti 

,§ o Santa Fe 

c5' 

Albuquerque II 

rt-Study area 

FIGURE !.-Generalized geologic map of the Manzano Mountains, New Mexico. Modified from Myers (1966, 1967, 1977) and Myers 

and McKay (1970, 1971, 1972, 1974, 1976). 
FUSULINIDS FROM THE SANDIA FORMATION AND THE LOS MOYOS LIMESTONE 5 

Fusulinid Foraminifera have been found in all units 

of Pennsylvanian and Lower Permian rocks in the Manzano Mountains. In this report, however, only those 

fusulinids from the Sandia Formation and the Los 

Moyos Limestone of Atokan and Desmoinesian ages, 

respectively, will be discussed. All illustrated material 

is from measured stratigraphic sections or, in a few 

cases, from beds that were correlated to the measured 

sections. The sections were measured between 

1962-1976 during geologic mapping the Manzano 

Mountains. All formation and member contacts have 

been mapped in detail at a scale of 1:24,000. 

About 50 partial and complete stratigraphic sections 

were measured, and from them, three composite sections were prepared. These are considered to be representative of the southern, central, and northern parts 

of the Manzano Mountains (fig. 2). The individual 

stratigraphic sections that were used to compile the 

composite sections are from Myers (1966, 1967, 1969) 

and Myers and McKay (1970, 1974, 1976). 

Most fusulinid collections were made during geologic 

mapping. Where possible, sufficient material was collected to allow preparation of 30-50 oriented thin 

sections. Representative and unusual specimens from 

each collection were photographed at magnifications of 

10 or multiples thereof. 

The fusulinid faunas from the Sandia Formation and 

the Los Moyos Limestone have been assigned to the 

zones of Fusulinella and Beedeina. 

The zone of Fusulinella has been subdivided into two 

assemblage subzones: Fusulinella devexa and the 

younger F. whitensis. The generic name Beedeina is now 

used for most North American species that were formerly referred to as Fusulina (Ishii, 1957, 1958). The 

zone of Beedeina has been subdivided into four 

assemblage subzones which are, in ascending order, 

Beedeina insolita; B. novamexicana, B. rockymontana, 

and B. suphurensis. The rocks that contain the zone of 

Beedeina are overlain by the Sol se Mete Member of the 

Wild Cow Formation, which is referred to the zone of 

Triticites and assemblage subzone of Triticites 

nebraskensis. The stratigraphic position of these zones 

and subzones is shown on figure 2. 

FUSULINIDS FROM THE 

SANDIA FORMATION 

STRATIGRAPHIC SUMMARY 

The Sandia Formation is a succession of mostly terriginous shale, siltstone, sandstone, and conglomerate 

that is olive drab and micaceous; the shale is locally 

carbonaceous and coaly. A few thin beds of marine 

limestone and calcareous shale and siltstone are present. 

Fossil plant debris is common. The thickness of the Sandia ranges from less than 10 ft to about 300 ft; the range 

in thickness reflects, in part, the topographic configuration of the eroded surface of the underlying. Precambrian rocks. The formation is of Atokan age and lies 

entirely within the zone of Fusulinella as defined by 

Thompson (1948, p. 23). 

ASSEMBLAGE SUBZONE OF 

FUSULINELLA DEVEXA 

The oldest fusulinids from the Manzano Mountains 

are referred to the assemblage subzone of Fusulinella 

devexa as defined by Ross and Sabins (1965, p. 177, 

179). These fusulinids include F. velmae Thompson, 

1936 (pl. 1, figs. 26-28), F. cf F. devexa Thompson, 

1945 (pl. 1, fig. 23, pl. 2, figs. 28-30) and Profusulinella aff. P. copiosa Thompson, 1948 (pl. 1, figs. 24, 

25). 

Profusulinella aff. P. copiosa is associated with F. 

devexa at a horizon about 100ft below the top of the 

Sandia in the southern part of the mountains (pl. 1, figs. 

23-25). There the base of the Sandia lies in fault contact with the Precambrian. 

The assemblage subzone of F. prospectensis of Ross 

and Sabins (1965, p. 177, 179) has not been recognized 

in the Manzano MountainS. 

ASSEMBLAGE SUBZONE OF 

FUSULINELLA WHITENSIS 

The assemblage subzone of F. whitensis of Ross and 

Sabins (1965, p. 177, 179) contains Fusulinella fugax 

Thompson, 1948, from sections in the northern (pl. 3, 

figs. 20-23) and central (pl. 2, figs. 26, 27) sections; F. 

whitensis Ross and Sabins, 1965 (pl. 1, figs. 18-22; and 

F. cf. F. famula Thompson, 1948 from the uppermost 

beds of the Sandia in the northern (pl. 3, figs. 16-19) and 

central (pl. 2, figs. 19, 20) Manzano Mountains. 

F. whitensis has been found only in the southern part 

of the mountains at about the middle of the Sandia. F. 

famula is seemingly restricted to the uppermost beds 

of the Sandia and to the lowermost beds of the overlying Los Moyos Limestone where it is associated with 

primitive species of Beedeina. 

Millerella, although not illustrated in this report, has 

been found throughout the Sandia Formation with 

several of the species cited above. 
6 FUSULINID FORAMINIFERA, MANZANO MOUNTAINS, NEW MEXICO 

Q) 

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Assemblage subzone of 

Assemblage subzone of 

Assemblage subzone of 

3 

Triticites nebraskensis 

Beedeina su/phurensis 

Beedeina rockymontana 

Beedeina novamexicana 

Beedeina insolita 

FEET METERS 

0 0 

Fusu/inella whitensis 

100 

50 

200 

300 

100 

FIGURE 2.-Fusulinid zones and assemblage subzones in Middle Pennsylvanian rocks, Manzano Mountains, New Mexico. 

Numbers designate composite stratigraphic sections: 1, southern Manzano Mountains; 2, central Manzano Mountains; 

3, northern Manzano Mountains. For explanation of symbols in gr'aphic sections, see figure 3. 

FUSULINIDS FROM THE 

LOS MOYOS LIMESTONE 

STRATIGRAPHIC SUMMARY 

The Los Moyos Limestone (Myers, 1973), the lowermost formation of the Madera Group, is dominantly 

cliff-forming, massive, cherty, gray limestone containing subordinate amounts of dark-colored calcareous 

shale, sandstone, and minor conglomerate. Most of the 

formation is marine, but, locally, near the middle of the 

formation, some of the sandstone and conglomerate contains pieces of fossil wood, which are more than 3 ft 

long. The Los Moyos has an average thickness of 600 ft 

throughout the Manzano Mountains. The formation is 

of Desmoinesian age and lies mostly within the fusulinid 

zone of Beedeina. Its lower contact is gradational from 

the underlying Sandia Formation; for purposes of mapping, the contact has been picked at the base of the 
FUSULINIDS FROM THE SANDIA FORMATION AND THE LOS MOYOS LIMESTONE 7 

~ Conglomerate 

~Siltstone ~ 

~ ~Calcareous 

siltstone 

~ Precambrian 

~rocks 

I===~ I Shale 

~ Gypsiferous 

~shale 

~ Calcareous 

~shale 

. ~Limestone 

~Cherty limestone 

Shaley 

limestone 

FEET 

0 

100 

200 

300 

400 

500 

600 

FIGURE 3.-Explanation of stratigraphic sections on figure 2, and 

plates 1-5. Scale does not apply to figure 2. 

lowest cherty, ledge- to cliff-forming limestone. In the 

Manzano Mountains, this lowest limestone contains 

abundant chert that weathers a distinctive rusty 

orange. The Los Moyos Limestone is the lower gray 

limestone member of the Madera Limestone of Read 

and others (1944). 

ASSEMBLAGE SUBZONE OF BEEDEINA INSOLITA 

The oldest fusulinids from the Los Moyos are found 

near the base of the formation and are referred to Beedeina insolita (Thompson), 1948, (pl. 1, fig. 15), and 

Millerella sp. (pl. 1, fig. 16, 17) in the southern part of 

the Manzano mountains; B. aff. B. insolita (pl. 2, figs. 

18-20), and Fusulinella famula Thompson, 1948, (pl. 2, 

figs. 21-23) from the central part of the mountains; and 

B. insolita (pl. 3, fig. 13), and Plectofusulina sp. (pl. 3, 

figs. 14, 15) from the northern part of the mountains. 

A few feet above the B. insolita fauna, Beedeina aff. 

B. arizonensis (Ross and Sabins, 1965) appears in the 

northern part of the mountains (pl. 3, fig. 10), where it 

is associated with Fusulinella cf. F. famula and 

Eoschubertella aff. E. bluensis Ross and Sabins, 1965 

(pl. 3, figs. 11, 12). B. arizonensis has been found 

throughout the Manzano Mountains at about this same 

horizon; however, it was not recovered from the areas 

of the southern and central stratigraphic sections. 

ASSEMBLAGE SUBZONE OF 

BEEDEINA NOVAMEXICANA 

About 25-50 ft above the horizon of B. arizonensis, 

fusulinids of the group of B. novamexicana first appear. 

The oldest of these, B. aff. B. novamexicana (Needham), 

1937 is illustrated on pl. 1, fig. 13, 14 and pl. 2, figs. 

15, 16, where it is associated with Wedekindellina aff. 

W. euthysepta (Henbest), 1928, (pl. 2, fig. 17); and on 

pl. 3, figs. 7, 9, where it is associated with 

Wedekindellina aff. W. pseudomatura Ross and Tyrell, 

1965 (pl. 3, fig. 8). 

Next, above the initial occurrence of early forms of 

B. novamexicana, is an assemblage dominated by 

W edekindellina. In the southern part of the mountains, 

the assemblage includes W. excentrica (Roth and Skinner), 1930, (pl. 1, fig. 10) and W. cf. W. henbesti (Skinner), 1931, (pl. 1, fig. 11) andMillerella sp. (pl. 1, fig. 12). 

In the central part of the mountains, W. cf. W. coloradoensis (Roth and Skinner), 1930, (pl. 2, fig. 12, 13) is 

associated with B. cf. B. rockymontana (Roth and Skinner), 1930, pl. 2, fig. 14). In the northern part, B. aff. 

B. apachensis (Ross and Sabins), 1965, pl. 3, fig. 4) is 

associated with W. cf. W. henbesti (pl. 3, figs. 5, 6). 

Just below, or in, a sequence of calcareous shale and 

nodular limestone, Beedeina cf. B. novamexicana 

(Needham), 1937 reappears (pl. 1, fig. 7) with 

Wedekindellina sp. A (pl. 1, figs. 8, 9); B. aff. B. novamexicana (pl. 3, fig. 2) and W. cf. W. euthysepta 

(Henbest), 1928, (pl. 3, figs. 1, 3) are found at the same 

horizon in the northern part of the mountains. In the 

southern part of the mountains, Wedekindellina aff. W 

euthysepta (pl. 1, figs. 1, 4, 5), Beedeina cf. B. novamexicana (pl. 1, figs. 2, 3) and Millerella sp. (pl. 1, fig. 6) are 

found a few feet above the shaley zone. Fusulinids were 

not found above the shaley zone in the central and 

northern parts of the mountains. 

B. novamexicana is also found, only in the southern 

part of the mountains, in the lower part of the middle 

third of the Los Moyos, a short distance below and just 

above a thin bed of conglomerate. Occurring with B. aff. 

B. novamexicana (pl. 4, figs. 17, 20-23) are Wedekindellina aff. W. elfina (pl. 4, figs. 18, 19) above the conglomerate, and W edekindellina cf. W. excentrica (Roth 

and Skinner), 1932 (pl. 4, fig. 24, 25) below the conglomerate. This is stratigraphically the highest occurrence of B. novamexicana in the Manzano Mountains. 

ASSEMBLAGE SUBZONE OF B. ROCKYMONTANA 

The subzone of Beedeina rockymontana occupies the 

central part of the Los Moyos Limestone. B. rockymontana (Roth and Skinner), 1930, and closely related forms 

dominate the fusulinid fauna; associated with them are 

various species of Wedekindellina. Included in this subzone is B. socorroensis (Needham) 1937. 

In the southern part of the mountains, B. rockymontana has not been found in the measured sections. The 
8 FUSULINID FORAMINIFERA, MANZANO MOUNTAINS, NEW MEXICO 

subzone is represented by Beedeina cf. B. socorroensis 

(Needham), 1937 (pl. 4, figs. 15, 16), B. cf. B. joyitae.nsis Stewart, 1970 (pl. 4, figs. 10, 11, 14), Beedeina sp. 

B (pl. 4, figs. 6, 7), Wedekindellina sp. B (pl. 4, figs. 12, 

13), and Wedekindellina aff. W. euthysepta (pl. 4, figs. 

8, 9). In the central part of the mountains, B. cf. B. 

rockymontana (pl. 2, fig. 14) and B. rockymontana (pl. 

2, figs. 9-11) are associated with Wedekindellina cf. W. 

coloradoensis (pl. 2, figs. 12, 13). In the northern part 

of the mountains, B. rockymontana (pl. 5, figs. 19-25) 

and B. aff. B. rockymontana (pl. 5, figs. 16-19) are present to the exclusion of other fusulinids. 

ASSEMBLAGE SUBZONE OF B. SULPHURENSIS 

The upper part of the Los Moyos Limestone embraces 

the subzone of Beedeina sulphurensis. In the southern 

part of the mountains, this subzone is represented by 

Beedeina cf. B. haworthi (Beede), 1916 (pl. 4, figs. 4, 5) 

near the base of the subzone, and by Beedeina 

sulphurensis (Ross and Sabins), 1965 (pl. 4, figs. 1, 2) 

associated with rare specimens of Wedekindellina ellipsoides? (pl. 4, fig. 3). The upper 140ft of the Los Moyos 

in the southern part of the mountains are barren of 

fusulinids. 

In the central part of the mountains, the subzone of 

Beedeina sulphurensis is represented by B. cf. B. 

sulphurensis (pl. 2, fig. 6); and an obese, large, rare 

fusulinid referred to Beedeina sp. A (pl. 2, figs. 4, 5). 

Beedeina sp. A has been found only in the uppermost 

beds of the Los Moyos, a few feet below the basal beds 

of rocks of Missourian age. 

In the northern part of the mountains, the oldest 

fusulinids assigned to the subzone are an undescribed 

species here called Beedeina sp. C (pl. 5, figs. 12, 13). In 

the collection at hand, Beedeina sp. C is associated with 

reworked specimens of Beedeina aff. B. rockymontana 

(pl. 5, figs. 14, 15): all tests of B. aff. B. rockymontana 

are abraded and (or) broken, presumably by normal erosional processes. Rocks that contain Beedeina sp. C. are 

overlain by rocks that contain B. sulphurensis (pl. 5, 

figs. 10, 11) where it is associated with uncommon 

specimens of Wedekindellina ellipsoides Dunbar and 

Henbest, 1942 (pl. 5, figs. 8, 9). Higher in the Los Moyos 

Limestone, Beedeina retusa (Thompson), 1953 (pl. 5, 

figs. 4-7) has been recorded. Near the top of the Los 

Moyos, reworked specimens of Beedeina aff. B. retusa 

(pl. 5, figs. 1-3) have been found. 

Worthy of note, Eowaeringella cf. E. joyitaensis, 

Stewart 1970 (pl. 2, figs. 1-3) has been found locally in 

the uppermost beds of the Los Moyos Limestone. The 

occurrence of Eowaeringella, as far as is known, is 

restricted to rocks of earliest Missourian age, hence, at 

least locally, deposition of the Los Moyos continued into 

earliest Missourian time. 

FAUNAL CORRELATIONS 

ZONE OF FUSULINELLA 

The Sandia Formation lies within the fusulinid zone 

of Fusulinella. There is no evidence to indicate that the 

older zone of Profusulinella is present. The oldest 

assemblage subzone in the Sandia is represented by F. 

devexa (fig. 2). This assemblage subzone has been 

reported from southeast Arizona by Ross and Sabins 

(1965, p. 179 figs. 4) from the lower 180ft of the Horquilla Limestone. Thompson (1942 and 1948, p. 94) 

described F. devexa from the upper part of his Cuchillo 

Negro Formation near the top of his Derry Series. In 

Thompson's measured sections, (1942, fig. 2) an unconformity? is shown at the top of the Derry. If the unconformity exists, rocks younger than the Derry are 

present in the Sandia in the Manzano Mountains, 

southeastern Arizona, and probably elsewhere. 

The next younger assemblage subzone in the Sandia 

Formation is that of Fusulinella whitensis. This 

assemblage subzone correlates with that of Ross and 

Sabins (1965, pl. 179, fig. 4) where they have recorded 

it from the top of the Fusulinella zone in the Horquilla 

Limestone. It is younger than any recorded by Thompson (1948) from his Derry Series in southern New 

Mexico. 

Although there are no species of Fusulinella in common, material figured by Thompson (1945, figs. 6, 7, pls. 

2, 3) from his Hells Canyon Formation in northwestern 

Colorado is similar to that of the F. whitensis assemblage subzone in the Manzano Mountains. 

ZONE OF BEEDEINA 

The Los Moyos Limestone lies within the fusulinid 

zone of Beedeina. The oldest assemblage subzone in the 

Los Moyos is that of B. insolita, which has been found 

in the lower 40-80 ft of the formation (fig. 2). It is thinnest at the south end of the mountains and thickest at 

the north. The assemblage subzone is approximately 

equivalent to Ross and Sabins' (1965) Beedeina hayensis assemblage subzone which contains B. hayensis, B. 

arizonensis, B. portalensis, and Fusulinella famula. 

Thompson (1948, p. 96, 97) described B. insolita from 

the uppermost beds of his Derry Series and mentioned 
FUSULINIDS FROM THE SANDIA FORMATION AND THE LOS MOYOS LIMESTONE 9 

that specimens of that species are rare and are associated with abundant specimens of Fusulinella deuexa, 

Pseudostaffella needhami, Eoschubertella mexicana, 

and Millerella. Thompson did not describe the fusulinid 

faunas above his Derry Series; therefore, I do not know 

the vertical extent of the B. insolita assemblage subzone in southern New Mexico. In the Manzano Mountains, and in southeastern Arizona, the oldest 

representatives of B. insolita are apparently earliest 

Desmoinesian. 

The next youngest assemblage subzone, that of B. 

nouamexicana, occupies an interval of about 220ft of 

strata in the southern part of the mountains; in the central and northern part, this stratigraphic interval is 

about 80ft thick (fig. 2). B. nouamexicana is associated 

with various slender species of W edekindellina, and the 

assemblage subzone is probably equivalent to the 

Wedekindellina euthysepta assemblage subzone of Ross 

and Sabins (1965) in southeastern Arizona. The Manzano fauna is similar to that recorded from the 

Wedekindellina zone by Dunbar and Henbest (1942, 

fig. 2) in the Stonefort Limestone Member of the Spoon 

Formation of southern Illinois. 

The B. nouamexicana assemblage subzone is overlain 

by that of B. rockymontana. The B. rockymontana 

assemblage subzone is about 120 ft thick in the 

southern part of the mountains, and is about 240 ft 

thick in the centr8.I and northern part (fig. 2). It is a 

probable equivalent to the upper part of the B. girtyi 

subzone of Ross and Sabins (1965), but the faunas in 

this part of Ross and Sabins' sections are different 

enough from those of the Manzano Mountains that they 

are difficult to correlate. Ross (1969, p. 1409) has identified B. rockymontana from the Horquilla Limestone 

in the Gila Mountains, Arizona, 80-120 ft below an 

assemblage of B. leei and Wedekindellina henbesti. 

The assemblage subzone of B. sulphurensis, at most 

places, is found in the upper 180-240 ft of the Los 

Moyos. It is thickest at the south end of the mountains. 

This assemblage subzone contains fusulinid faunas that 

are typical of those found in the upper beds of the Des 

Moines Series throughout the United States. It is 

equivalent to the B. eximia subzone in southeastern 

Arizona (Ross and Sabins, 1965), and its faunas are 

similar to those illustrated by Dunbar and Henbest 

(1942) from the upper part of the McLeansboro Group 

in southern Illinois. They also resemble those figured 

by Thompson (1934) from the upper part of the Des 

Moines Series in Iowa, and resemble those fusulinids 

figured by Myers (1960) and Stewart (1958) from the 

Capps Limestone Member of the Mineral Wells Formation in central and no~th-central Texas. 

The upper 10ft of the Los Moyos contains, at a single 

locality, representatives of the fusulinid Eowaeringella 

cf. E. joyitaensis Stewart, 1968. The stratigraphic range 

of this genus is apparently restricted to early Missourian time (Stewart, 1968, p. 6, fig. 2). Therefore, these 

uppermost beds of the Los Moyos are interpreted to 

have been deposited during earliest Missourian time. 

COLLECTING LOCALITIES 

All listed collecting localiti~s are from New Mexico, 

and all collections were made by the author between 

1962-1972. Some collections from the central part of 

the Manzano Mountains were made on Isleta Indian 

Pueblo land; many collections from the northern part 

of the mountains were made on the Sandia Military 

Reservation. Access to these areas may be difficult; 

authorization to enter these areas should be obtained 

either from the Isleta Pueblo government at Isleta, or 

from military authorities at Sandia Military Reservation in Albuquerque. All topographic quadrangles listed 

are 7 1/2-minute unless otherwise noted. 

f10158. Sandia Formation Valencia County, SWl/4 of Thrreon 15-minute topographic quadrangle. From a section that was measured 

east through a gap in a hogback in the SW1/4NE1/4, sec. 6, T. 

3 N., R. 5 E. This is the lower part of section 2 of Myers and McKay 

(1974). The base of the section is at a fault contact between the 

Sandia Formation and granite. Collection is from 21ft above the 

granite and 103 ft below the top of the Sandia Formation. 

f10159. Los Moyos Limestone. See f10158 for locality. From 22ft 

above base. 

f10160. Los Moyos Limestone. See f10158 for locality. From 112ft 

above base. 

f10161. Sandia Formation. Bernalillo County, Mount Washington 

topographic quadrangle. From a section that was measured from 

the top of the Precambrian northeast to road along top of ridge, 

thence southeast to Sol se Mete Peak. This is section 1 of Myers 

and McKay (1970). Base of section is in the NW1/4SE1/4, sec. 29, 

T. 9 N., R. 5 E., 193ft above base of Sandia Formation, Sandia 

Military Reservation. 

f10162. Sandia Formation. See f10161 for locality. From 10ft below 

top. Sandia Military Reservation. 

f10163. Los Moyos Limestone. See f10161 for locality. From 65ft 

above base. Sandia Military Reservation. 

f10164. Los Moyos Limestone. See f10161 for locality. From 86 ft 

above base. Sandia Military Reservation. 

f10165. Los Moyos Limestone. See f10161 for locality. From 226ft 

above base. Sandia Military Reservation. 

f10166. Los Moyos Limestone. See f10161 for locality. From 279ft 

above base. Sandia Military Reservation. 

f10167. Los Moyos Limestone. See f10161 for locality. From 383ft 

above base. Sandia Military Reservation. 

f10168. Los Moyos Limestone. See f10161 for locality. From 481 ft 

above base. Sandia Military Reservation. 

fl0169. Los Moyos Limestone. See f10161 for locality. From 491 ft 

above base. Sandia Military Reservation. 

f10170. Los Moyos Limestone. See f10161 for locality. From 505ft 

above base. Sandia Military Reservation. 

f10171. Los Moyos Limestone. See f10161 for locality. From 527 ft 

above base and about 40ft below top of Los Moyos Limestone. 

Sandia Military Reservation. 
10 FUSULINID FORAMINIFERA, MANZANO MOUNTAINS, NEW MEXICO 

f10172. Los Moyos Limestone. Valencia County, SW1/4 Torreon 

15-minute topographic quadrangle. From a section that was 

measured east through a gap in a hogback in the NW1/4SE1/4, 

sec. 31, T. 4 N., R. 5 E. This is the lower part of section 3 of Myers 

and McKay (1974). From 161 ft above base. 

f10173. Los Moyos Limestone. See f10172 for locality. From 205ft 

above base. 

f10174. Los Moyos Limestone. See f10172 for locality. From 258ft 

above base. 

f10175. Los Moyos Limestone. See f10172 for locality. From 302 feet 

above base. 

f10176. Los Moyos Limestone. See f10172 for locality. From 395ft 

above base. 

f10177. Los Moyos Limestone. Bernalillo County, Escabosa topographic quadrangle. Section measured in roadcuts along stream 

bed of Gotera Canyon in NW1/4NW1/4, section 20, T. 8 N., R. 

6 E. This is part of section 1 of Myers (1969). From top of Los 

Moyos Limestone. Isleta Pueblo. 

f10178. Sandia Formation. Valencia county. SWl/4 Torreon 

15-minute topographic quadrangle. Section measured from fault 

contact of Sandia Formation with granite, southeast through gap 

in hogback at south edge of quadrangle: sec. 7, T. 3 N., R. 5 E. 

This is the lower part of section 1 of Myers and McKay (1974). 

From 93 ft above fault contact; 81 ft below top of Sandia 

Formation. 

f10179. Sandia Formation. See f10178 for locality. From 108ft below 

top. 

f10180. Sandia Formation. See f10178 for locality. From 126ft below 

top. 

f10181. Los Moyos Limestone, type section. See f10178 for locality. 

From 58 ft above base. 

f10182. Los Moyos Limestone, type section. See f10178 for locality. 

From 110 ft above base. 

f10183. Los Moyos Limestone, type section. See f10178 for locality. 

From 163 ft above base. 

f10184. Los Moyos Limestone, type section. See f10178 for locality. 

From 253 ft above base. 

f10185. Los Moyos Limestone, type section. See f10178 for locality. 

From 330 ft above base. 

f10186. Los Moyos Limestone, type section. See f10178 for locality. 

From 463 ft above base. 

fl0187. Los Moyos Limestone. Bernalillo County, Sedillo topographic 

quadrangle. Section measured east along bed of ravine that drains 

west from Cedro Peak. Base of section is in NW1/4NW1/4 sec. 

36, T. 10 N., R. 5 E., at mouth of ravine at approximate elevation 

of 6, 700 feet. This is the lower part of section 1 of Myers and 

McKay (1976). From 22ft above base of Los Moyos Limestone. 

f10188. Los Moyos Limestone. See f10187 for locality. From 138ft 

above base. 

f10189. Los Moyos Limestone. See f10187 for locality. From 371 ft 

above base. 

f10190. Los Moyos Limestone. See f10158 for locality. From 271ft 

above base. 

f10191. Sandia Formation. Torrance County, Bosque Peak, and 

Tajique topographic quadrangles. Section measured in Los Moyos 

and Agua Azul Canyons. This is section 1 of Myers (1966). Base 

of section is at contact of Sandia Formation with Precambrian 

rocks in Los Moyos Canyon; about 2.6 miles N. 30° E. from Mosca 

Peak, at approximate elevation 6,960 feet. From 64 ft above 

depositional contact of Sandia with Precambrian. Isleta Pueblo. 

fl0192. Sandia Formation. See f10191 for locality. From 118ft above 

base. Isleta Pueblo. 

f10193. Sandia Formation. See f10191 for locality. From 7ft below 

top. Isleta Pueblo. 

fl0194. Los Moyos Limestone. See f10191 for locality. From base 

of Los Moyos Limestone. Isleta Pueblo. 

f10195. Los Moyos Limestone. See f10191 for locality. From 60ft 

above base. Isleta Pueblo. 

f10196. Los Moyos Limestone. See f10191 for locality. From 119ft 

above base. Isleta Pueblo. 

f10197. 'Los Moyos Limestone. See f10191 for locality. From 247ft 

above base. Isleta Pueblo. 

f10198. Los Moyos Limestone. See f10191 for locality. From 361ft 

above base. Isleta Pueblo. 

f10199. Los Moyos Limestone. See f10191 for locality. From 512ft 

above base. Isleta Pueblo. 

f10200. Los Moyos Limestone. See f10191 for locality. From 12ft 

below top. Isleta Pueblo. 

REFERENCES CITED 

Armstrong, A. K., 1967, Biostratigraphy and carbonate facies or' the 

Mississippian Arroyo Penasco Formation, north-central New Mexico: New Mexico Bureau of Mines and Mineral Resources Memoir 

20, 80 p. 

Beede, J. W., 1916, New species of fossils from the Pennsylvanian 

and Permian rocks of Kansas and Oklahoma: Indiana University Studies, v. 3, p. 5-15. 

Dunbar, C. 0., and Henbest, L. G., 1942, Pennsylvanian Fusulinidae 

of Illinois: Iliinois Geological Survey Bulletin 67, 218 p. 

Henbest, L. G., 1928, Fusulinellas from the Stonefort Limestone 

Member of the Tradewater Formation: Journal of Paleontology, 

v. 2, p. 70-85, pls. 8, 9. 

Ishii, Ken-ichi, 1957, On the so-called Fusulina: Japan Academy Proceedings, v. 33, no. 10, p. 652-656. 

__ 1958, On the phylogeny, morphology and distribution of 

Fusulina, Beedeina and allied fusulinid genera: Osaka City University, Institute Polytechnics Journal, series G., v. 4, p. 29-70. 

Myers, D. A., 1960, Stratigraphic distributions of some Pennsylvanian Fusulinidae from Brown and Coleman Counties, Texas: U.S. 

Geological Survey Professional Paper 315-C, p. 37-53, pl. 15-24. 

__ 1966, Geology of the Tajique quadrangle, Torrance and Bernalillo Counties, New Mexico: U.S. Geological Survey Geologic 

Quadrangle Map GQ-551. 

__ 1967, Geologic map of the Torreon Quadrangle, Torrance County, New Mexico: U.S. Geological Survey Geologic Quadrangle Map 

GQ-639. 

__ 1969, Geologic map of the Escabosa quadrangle, Bernalillo 

County, New Mexico: U.S. Geological Survey Geologic Quadrangle 

Map GQ-795. 

__ 1973, The late Paleozoic Madera Group in the Manzano Mountains, New Mexico: U.S. Geological Survey Bulletin 1372-F, 

p. F1-F13. 

__ 1977, Geologic map of the Scholle quadrangle, Socorro, V alencia, and Torrance Counties, New Mexico: U.S. Geological Survey 

Geologic Quadrangle Map GQ-1412. 

Myers, D. A., and McKay, E. J., 1970, Geologic map of the Mount 

Washington quadrangle, Bernalillo and Valencia Counties, New 

Mexico: U.S. Geological Survey Geologic Quadrangle Map 

GQ-886. 

__ 1971, Geologic map of the Bosque Peak quadrangle, Torrance, 

Valencia, and Bernalillo Counties, New Mexico: U.S. Geological 

Survey Geologic Quadrangle Map GQ-948. 

__ 1972, Geologic map of the Capilla Peak quadrangle, Torrance 

and Valencia Counties, New Mexico: U.S. Geological Survey 

Geologic Quadrangle Map GQ-1008. 
FUSULINIDS FROM THE SANDIA FORMATION AND THE LOS MOYOS LIMESTONE 11 

__ 1974, Geologic map of the southwestern part of the Torreon 

15-minute quadrangle, Torrance, Valencia, and Socorro Counties, 

New Mexico: U.S. Geological Survey Miscellaneous Geologic Investigations Map-820. 

__ 1976, Geologic map of the north end of the Manzano Mountains, New Mexico: U.S. Geological Survey Miscellaneous Geologic 

Investigations Map I-1039. 

Needham, C. H., 1937, Some New Mexico Fusulinidae: New Mexico 

Bureau of Mines and Mineral Resources Bulletin 14, 88 p, 12 pl. 

Plummer, F. B., and Moore, R. C., 1921, Stratigraphy of the Pennsylvanian formations of north-central Texas: Texas University 

Bulletin 2132, 237 p, 25 pis. 19 figs. 

Read, C. B., Wilpot, R. H., Andrews, D. A., Summerson, C. H., and 

Wood, G. H., 1944, Geologic map and stratigraphic sections of 

Permian and Pennsylvanian rocks of parts of San Miguel, Santa 

Fe, Sandoval, Bernalillo, Torrance, and Valencia Counties, north 

central New Mexico: U.S. Geological Survey Oil and Gas Investigations Preliminary Map 21. 

Ross, C. A., 1969, Middle and upper Pennsylvanian Fusulinaceans, 

Gila Mountains, Arizona: Journal of Paleontology, v. 43, 

p. 1405-1422, pls. 170-174, 2 figs. 

Ross, C. A., and Sabins, F. F., 1965, Early and Middle Pennsylvanian fusulinids from southeast Arizona: Journal of Paleontology, 

v. 39, p. 173-209, pls. 21-28. 

Ross, C. A., and Tyrell, W. W., Jr., 1965, Pennsylvanian and Permian 

fusulinids from the Whetstone Mountains, southeast Arizona: 

Journal of Paleontology, v. 39, p. 615-635, pis. 75-78. 

Roth, Robert, and Skinner, J. W., 1930, the fauna of the McCoy Formation, Pennsylvanian, of Colorado: Journal of Paleontology, v. 

4, p. 332-352, pis. 28-31. 

Skinner, J. W., 1931, Primitive fusulinids of the mid-continent region: 

Journal of Paleontology, v. 5, p. 253-259, pl. 30. 

Stewart, W. J., 1958, Some fusulinids from the upper Strawn, Pennsylvanian, of Texas: Journal of Paleontology, v. 32, p. 1051-1070, 

pl. 132-137. 

__ 1968, The stratigraphic and phylogenetic significance of the 

fusulinid genus Eowaeringella, with several new species: Cushman 

Foundation Foraminiferal Research Special Publication 10, 29 p, 

7 pl. 

__ 1970, Fusulinids of the Joyita Hills, Socorro County, central 

New Mexico: New Mexico Bureau of Mines and Mineral Resources 

Memoir 23, pt. 2, p. 34-80, pl. 1-10. 

Thompson, M. L., 1934, The fusulinids of the Des Moines Series of 

Iowa: Iowa University Studies in Natural History, v. 16, no. 4, 

p. 277-332, pis. 20-23. 

__ 1936, Fusulinids from the Black Hills and adjacent areas 

in Wyoming: Journal of Paleontology, v. 10, p. 95-113, pis. 

13-16. 

__ 1942, Pennsylvanian system in New Mexico: New Mexico 

Bureau of Mines and Mineral Resources Bulletin 17, 92 p, 

8 figs. 

__ 1945, Pennsylvanian rocks and fusulinids of east Utah and 

northwest Colorado correlated with Kansas section: Kansas 

Geological Survey Bulletin 60, pt. 2, p. 17-84, 6 pl., 11 figs. 

__ 1948, Studies of American fusulinids: Kansas University 

Paleontological Contributions, Article 1, 184 p, 38 pis., 7 figs. 

Thompson, M. L., and Thomas, H. D., 1953, Fusulinids of the Casper 

Formation of Wyoming, pt. 2, Systematic paleontology of 

fusulinids from the Casper Formation: Wyoming Geological 

Survey Bulletin 40, p. 15-56, pl. 1-8, figs. 1-4. 

Plates 1-5 follow 

Contact photographs of these plates are available, at 

cost, from the U.S. Geological Survey Photographic 

Library, Box 25046, Denver Federal Center, Denver, Colorado 80225 
PLATE 1 

Fusulinids from the Sandia Formation and the lower part of the Los 

Moyos Limestone in the southern part of the Manzano Mountains. 

FIGURE 1. 

2, 3. 

4, 5. 

6. 

7. 

8, 9. 

10. 

11. 

12. 

13, 14. 

15. 

16, 17. 

18, 19. 

20-22. 

23. 

24, 25. 

26-28. 

[All unretouched photographs; X 10 except where otherwise indicated] 

For explanation and scale of graphic section, see text figure 3. 

USGS f10183, Wedekindellina aff. W. euthysepta (Henbest), 1928. Axial section, 

slide 2, USNM 34 7052. 

USGS f10183, Beedeina cf. B. novamexicana (Needham), 1937. Axial sections, 

slides 1, 4, USNM 347053, 347054. 

USGS f10172, Wedekindellina aff. W. euthysepta (Henbest), 1928. Axial sections, 

slides 3, 2, USNM 34 7055, 34 7056. 

UGS f10172, Millerella sp. ( X 100). Axial section, slide 4, USNM 347057. 

USGS f10182, Beedeina cf. B. novamexicana (Needham), 1937. Axial section, 

slide 2, USNM 34 7058. 

USGS f10182. Wedekindellina sp. A. Axial sections slides 1, 5, USNM 347059, 

347060. 

USGS f10160. Wedekindellina excentrica (Roth and Skinner), 1930. Axial section, slide 1, USNM 347061. 

USGS f10160. Wedekindellina cf. W. henbesti (Skinner), 1931. Axial section, slide 

3, USNM 34 7062. 

USGS f10160. Millerella sp. ( X 100). Axial section, slide 2, USNM 347063 

USGS f10181. Beedeina aff. B. novamexicana (Needham), 1937. Axial sections, 

slides 1, 4, USNM 347064, 347065. 

USGS f10159. Beedeina insolita (Thompson), 1948. Axial section, slide 3, USNM 

347066. 

USGS f10159. Millerella sp. ( X 100). Axial sections, slides 3, 2, USNM 347067, 

347068. 

USGS f10158. Fusulinella whitensis Ross and Sabins, 1965. Axial sections, slides 

4, 2, USNM 347069, 347070. 

USGS f10178. Fusulinella whitensis Ross and Sabins, 1965. Axial sections, slides 

5, 4, 1, USNM 347071, 347072, 347073. 

USGS f10179. Fusulinella devexa Thompson, 1948. Axial section, slide 11, USNM 

347074. 

USGS f10179. Profusulinella aff. P. copiosa Thompson, 1948. ( X 50). Axial sections, slides 5, 3, USNM 347075, 34707(?. 

USGS f10180. Fusulinella velmae Thompson, 1936. Axial sections, slides 5, 1, 

4, USNM 347077, 347078, 347079. 

12 

[Chap. A] 
U.S. GEOLOGICAL SURVE Y 

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WEDEKINDELLINA, BEEDEINA, MILLERELLA, FUSULINELLA, 

A D PROFUSULINELLA FROM SOUTHER MA ZANO MOU TAl S 
PLATE 2 

Fusulinids from the Sandia Formation and the Los Moyos Limestone in 

the central part of the Manzano Mountains 

FIGURE 1-3. 

4, 5. 

6. 

7. 

8. 

9-11. 

12, 13. 

14. 

15, 16. 

17. 

18-20. 

21-23. 

24, 25. 

26, 27. 

28-30. 

[All unretouched photographs, X 10 except where otherwise indicated] 

For explanation and scale of graphic section, see text figure 3. 

USGS fl0177. Eowaeringella cf. E. joyitaensis Stewart, 1968. Axial sections, 

slides 17, 16, 8, USNM 347080, 347081, 347082. 

USGS fl0200. Beedeina sp. A. Axial sections, slides 3, 1, USNM 347083, 347084. 

USGS fl0199. Beedeina cf. B. sulphurensis (Ross and Sabins), 1965. Axial section, slide 5, USNM 347085. 

USGS fl0199. Plectofusulina sp. ( X 50). Equatorial section, slide 6, USNM 

347086. 

USGS f10198. Plectofusulina sp. ( X 50). Tangential section, slide 11. USNM 

347087. 

USGS fl0198. Beedeina rockymontana (Roth and Skinner), 1930. Axial sections, 

slides 8, 7, 10, USNM 347088, 347089, 347090. 

USGS £10197. Wedekindellina cf. W coloradoensis (Roth and Skinner), 1930. Axial 

sections, slides 1, 5, USNM 347091, 347092. 

USGS fl0197. Beedeina cf. B. rockymontana (Roth and Skinner), 1930. Axial 

section, slide 6, USNM 34 7093. 

USGS fl0196. Beedeina aff. B. novamexicana (Needham), 1937. Axial sections, 

slides 6, 4, USNM 34 7094, 34 7095. 

USGS fl0196. Wedekindellina aff. W. euthysepta (Henbest), 1928. Axial section, 

slide 3, USNM 347096. 

USGS fl0195. Beedeina aff. B. insolita (Thompson), 1948. Axial sections, slides 

3, 6, 1, UNSM 347097, 347098, 347099. 

USGS fl0194. Fusulinella famula Thompson, 1948. Axial sections, slides 3, 4, 

2, USNM 347100, 347101, 347102. 

USGS fl0193. Fusulinella famula Thompson, 1948. Axial sections, slides 6, 1, 

USNM 347103, 347104. 

USGS fl0192. Fusulinella aff. F. fugax Thompson, 1948. Axial sections, slides 

3, 2, USNM 347105, 347106. . 

USGS f10191. Fusulinella cf. F. devexa Thompson, 1948. Axial sections, slides 

4, 1, 5, USNM 347107, 347108, 347109 .. 

14 

[Chap. A] 
FUSULINELLA FROM CENTRAL MANZANO MOUNTAINS 
PLATE 3 

Fusulinids from the Sandia Formation and the lower part of the Los 

Moyos Limestone in the northern part of the Manzano Mountains. 

FIGURE 1, 3. 

2. 

4. 

5, 6. 

7, 9. 

8. 

10. 

11. 

12. 

13. 

14, 15. 

16-19. 

20-23. 

[All unretouched photographs; X 10 except where otherwise indicated] 

For explanation and scale of graphic section, see text figure 3. 

USGS f10188. Wedekindellina cf. W. euthysepta (Henbest), 1928. Axial sections, 

slides 3, 1, USNM 347110, 347111. 

USGS f10188. Beedeina aff. B. novamexicana (Needham), 1937. Axial section, 

slide 7, USNM 347112. 

USGS f10165. Beedeina aff. B. apachensis (Ross and Sabins), 1965. Axial section, slide 1, USNM 347113. 

USGS f10165. Wedekindellina cf. W. henbesti (Skinner), 1931. Axial sections, 

slides 5, 6, USNM 347114, 347115. 

USGS f10164. Beedeina aff. B. novamexicana (Needham), 1937. Axial sections, 

slides 3, 2, USNM 347116, 347117. 

USGS f10164. Wedekindellinapseudomatura Ross and Tyrrell, 1965. Axial section, slide 5, USNM 347118. 

USGS f10163. Beedeina aff. B. arizonensis (Ross and Sabins), 1965. Axial section, slide 3, USNM 347119. 

USGS f10163. Fusulinella cf. F. famula Thompson, 1948. Axial section, slide 4, 

USNM 347120. 

USGS f10163. Eoschubertella aff. E. bluensis Ross and Sabins, ( X 100), 1965. 

Axial section, slide 5, USNM 347121. 

USGS f10187. Beedeina insolita (Thompson), 1948. Axial section, slide 4, USNM 

347122. 

USGS f10187. Plectofusulina sp. ( X 50), Axial sections, slides 5, 6, USNM 

347123, 347124. 

USGS f10162. Fusulinella famula Thompson, 1948. Axial sections, slides 1, 3, 

5, 2, USNM 347125, 347126, 347127, 347128. 

USGS f10161. Fusulinella fugax? Thompson, 1948. Axial sections, slides 2, 5, 

4, 3, USNM 347129, 347130, 347131, 347132. 

16 

[Chap. A] 
Q.l 

c 

B 

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Q.l 

E 

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0 

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PRO~ ESSIO.t\'AL PAPER 1446A 

WEDE KINDELL INA, REEDEINA. FUSULINELLA, EOSCH UHERTELLA, AND 

PLECTOFUSULINA FROM ORTHERN MANZA. 0 MOUNTAINS 

PLATE 3 

19 
PLATE 4 

Fusulinids from the upper part of the Los Moyos Limestone in the 

southern part of the Manzano Mountains 

[All unretouched photographs; X 10 except where otherwise indicated] 

For explanation and scale of graphic section, see text figure 3. 

FIGURE 1, 2. USGS f10186. Beedeina sulphurensis (Ross and Sabins), 1965. Axial sections, 

slides 7, 8, USNM 347133, 347134. 

3. USGS f10186. Wedekindellina ellipsoides? Dunbar and Henbest, 1942. 

Tangential section, slide 6, USNM 347135. 

4, 5. USGS f10176. Beedeina cf. B. haworthi (Beede), 1916. Axial sections, slides 

5, 1, USNM 347136, 347137. 

6, 7. USGS f10185. Beedeina sp. B. Axial sections, slides 4, 7, USNM 347138, 

347139. 

8, 9. USGS fl0185. Wedekindellina aff. W. euthysepta (Henbest), 1928. Axial sections, slides 1, 3, USNM 347140, 347141. 

10, 11, 14. USGS fl0175. Beedeina cf. B.joyitaensis Stewart, 1970. Axial sections, slides 

3, 2, 1, USNM 347142, 347143, 347144. 

12, 13. USGS f10175. Wedekindellina sp. B. Axial sections, slides 6, 5, USNM 

347145, 347146. 

15, 16. USGS fl0190. Beedeina cf. B. socorroensis (Needham), 1937. Axial sections, 

slides, 4, 2, USNM 347147, 347148. 

17, 20, 21. USGS fl0174. Beedeina aff. B. novamexicana (Needham), 1937. Axial sections, slides 5a, 1, 2, USNM 347149, 347150, 347151. 

18-19. USGS fl0174. Wedekindellina aff. W. elfina (Thompson), 1934. ( X 20). Axial sections, slides 5b, 4, USNM 347152, 347153. 

22-23. USGS fl0173. Beedeina aff. B. novamexicana (Needham), 1937. Axial sections, slides 1, 2, USNM 347154, 347155. 

24-25. USGS f10173. Wedekindellina cf. W. excentrica (Roth and Skinner), 1930. 

Axial sections, slides 5, 4, USNM 347156, 347157. 

18 

[Chap. A] 
L:.S. GEOLOG

ICAL SuRVEY 

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PLATE 4 
PLATE 5 

Fusulinids from the upper part of the Los Moyos Limestone in the 

northern part of the Manzano Mountains. 

[All unretouched photographs; X 10 except where otherwise inrlicated) 

For explanation and scale of graphic section, see text figure 3. 

FIGURE 1-3. USGS f10171. Beedeina aff. B. retusa (Thompson) 1953, detrital. Axial sections, 

slides 3, 1, 4, USNM 347158, 347159, 347160. 

4-7. USGS f10170. Beedeina retusa (Thompson), 1953. Axial sections, slides 3, 6, 2, 

4, USNM 347161, 347162, 347163, 347164. 

8, 9. USGS f10169. Wedekindellina ellipsoides (Dunbar and Henbest), 1942. Axial sections, slides 3, 1, USNM 347165, 347166. 

10, 11. USGS f10169. Beedeina sulphurensis (Ross and Sabins), 1965. Axial sections, 

slides 2, 4, USNM 347167, 347168. 

12, 13. USGS f10168. Beedeina sp. C. Axial sections, slides 3, 2, USNM 347169, 347170. 

14, 15. USGS f10168. Beedeina aff. B. rockymontana (Roth and Skinner), 1930. Detrital. 

Axial sections, slides 6, 5, USNM 347171, 347172. 

16-18. USGS f10167. Beedeina aff. B. rockymontana (Roth and Skinner), 1930. Axial 

sections, slides 2, 1, 4, USNM 347173, 347174, 347175. 

19-22. USGS f10189. Beedeina rockymontana (Roth and Skinner), 1930. Axial sections, 

slides 5, 3, 1, 2, USNM 347176, 347177, 347178, 347179. 

23-25. USGS f10166. Beedeina rockymontana (Roth and Skinner), 1930. Axial sections 

slides 3, 4, 2 USNM 347180, 347181, 347182. 

20 

[Chap. A] 
C.S. GEO LOG ICAL SCRVEY 

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LL 

PROFESSIONAL PAPER 1446A PLATE 5 

BEEDEINA AND WEDEK!NDELL!NA FROM :--JORTHERN MANZA 

Stratigraphic Distribution of some 

Fusulinids from the Wild Cow and 

Bursum Formations, 

Manzano Mountains, New Mexico 

By DONALD A. MYERS 

STRATIGRAPHIC DISTRIBUTION OF FUSULINID FORAMINIFERA 

FROM THE MANZANO MOUNTAINS, NEW MEXICO 

U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1446-B 

Summarizes the stratigraphic distribution of fusulinid 

Foraminifera from the Middle and Upper Pennsylvanian and 

Lower Permian rocks in the Manzano Mountains, New Mexico. 

Compares these faunas with similar faunas found in west and 

north-central Texas, in the mid-continent region, and in other 

States as far west as Nevada and eastern Arizona 
CONTENTS 

Page Page 

Abstract .......................................... . 25 Stratigraphic distribution of the fusulinids-Continued 

Introduction ....................................... . 25 Bursum Formation ............................... . 33 

33 

33 

34 

34 

34 

35 

35 

35 

35 

36 

36 

38 

Late Paleozoic stratigraphy of the Manzano Mountains .. . 27 Faunal correlations ................................. . 

Stratigraphic distribution of the fusulinids ............. . 30 Assemblage subzone of Triticites nebraskensis ........ . 

Wild Cow Formation .............................. . 30 Assemblage subzone of Triticites ohioensis ........... . 

Sol se Mete Member ............................ . 30 Assemblage subzone of Triticites asperoides .......... . 

Assemblage subzone of Triticites nebraskensis ..... . 30 Assemblage subzone of Triticites bensonensis ......... . 

Assemblage subzone of Triticites ohioensis ........ . 30 Assemblage subzone of Triticites cullomensis ......... . 

Pine Shadow Member ........................... . 30 Assemblage subzone of Triticites beedei .............. . 

Assemblage subzone of Triticites asperoides ....... . 31 Assemblage subzone of Triticites whetstonensis ....... . 

Assemblage subzone of Triticites bensonensis ..... . 31 Assemblage subzone of Triticites creekensis .......... . 

Assemblage subzone of Triticites cullomensis ...... . 31 Zone of Schwagerina .............................. . 

La Casa Member ............................... . 31 Collecting localities ................................. . 

Assemblage subzone of Triticites beedei .......... . 32 References cited .................................... . 

Assemblage subzone of Triticites whetstonensis ... . 32 

Assemblage subzone of Triticites creekensis ....... . 32 

ILLUSTRATIONS 

[Plates follow References Cited] 

Page 

PLATE 1. Fusulinids from the Sol se Mete and Pine Shadow Members of the Wild Cow Formation in the southern part of the Man· 

zano Mountains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 

2. Fusulinids from the Sol se Mete Member of the Wild Cow Formation in the central part of the Manzano Mountains 42 

3. Fusulinids from the Sol se Mete and Pine Shadow Members of the Wild Cow Formation in the northern part of the Manzano Mountains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 

4. Fusulinids from the Pine Shadow Member of the Wild Cow Formation in the central part of the Manzano Mountains 46 

5. Fusulinids from the Pine Shadow and La Casa Members of the Wild Cow Formation in the central part of the Manzano 

Mountains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 

6. Fusulinids from the middle part of the Pine Shadow Member of the Wild Cow Formation in the northern part of the 

Manzano Mountains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 

7. Fusulinids from the Pine Shadow and La Casa Members of the Wild Cow Formation in the northern part of the Manzano 

Mountains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 

8. Fusulinids from the lower part of the La Casa Member of the Wild Cow Formation in the southern part of the Manzano 

Mountains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 

9. Fusulinids from the middle part of the La Casa Member of the Wild Cow Formation in the southern part of the Manzano 

Mountains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 

10. Fusulinids from the upper part of the La Casa Member of the Wild Cow Formation in the southern part of the Manzano 

Mountains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 

11. Fusulinids from the upper part of the La Casa Member of the Wild Cow Formation in the central part of the Manzano 

Mountains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 

12. Fusulinids from the La Casa Member of the Wild Cow Formation in the northern part of the Manzano Mountains 62 

13. Fusulinids from the Bursum Formation in the southern part of the Manzano Mountains, and miscellaneous fusulinids 

from the Manzano Mountains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 

FIGURE 1. Generalized geologic map of the Manzano Mountains, New Mexico . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 

2. Composite stratigraphic section, Fusulinid zones and assemblage subzones in Upper Pennsylvanian and Lower Permian 

rocks, Manzano Mountains, New Mexico . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 

3. Explanation of graphic sections on figure 2, and plates 1-13 ..................................... .-. . . . . . . . 29 

4. Summary of fusulinid zones and assemblage subzones, Manzano Mountains, New Mexico . . . . . . . . . . . . . . . . . . . . . . 29 

24 
STRATIGRAPHIC DISTRIBUTION OF FUSULINID FORAMINIFERA 

FROM THE MANZANO MOUNTAINS, NEW MEXICO 

DISTRIBUTION OF SOME FUSULINIDS 

FROM THE WILD COW AND BURSUM FORMATIONS, 

MANZANO MOUNTAINS, NEW MEXICO 

By DONALD A. MYERS 

ABSTRACT 

The Manzano Mountains, on the east side of the Rio Grande valley, 

extend about 50 mi south from Albuquerque. They are fault-block 

mountains, tilted east, and consist of Pennsylvanian and Permian 

rocks resting on a Precambrian core. Fusulinid Foraminifera have been 

found in all the Pennsylvanian and lower Permian rocks; however, only 

those from the Wild Cow and Bursum Formations are discussed here. 

The Wild Cow I: ormation, a rhythmically deposited sequence of marine 

and nonmarine rocks, is referred to the zone of Triticites. Eight 

assemblage subzones have been recognized in the Wild Cow Formation: two of Missourian age, five of Virgilian age, and one of Wolfcampian age. The Sol se Mete Member, the basal part of the Wild Cow 

Formation, contains the early Missourian assemblage subzones of 

Triticites nebraskensis and T. ohioensis; representatives of late Missourian time are missing. The Pine Shadow Member, the medial part of 

the formation, contains the early Virgilian assemblage subzones of 

Triticites asperoides, T. bensonensis, and T. cullomensis. The La Casa 

Member, the upper part of the formation, contains the late Virgilian 

assemblage subzones of Triticites beedei and T. whetstonensis; it also 

contains the early Wolfcampian assemblage subzone of Triticites 

creekensis. The assemblage subzone ofT. creekensis is also present 

in the overlying Bursum Formation. The zone of Schwagerina, represented by that genus, is present higher in the Bursum Formation. 

Fusulinid faunas representative of late Missourian, earliest Virgilian, 

and midVirgilian time are not present; the presence of terrigenous 

clastic rocks suggests uplift and erosion during these time intervals. 

INTRODUCTION 

The study of fusulinids is important because large 

amounts of oil and gas have been found in rocks assigned to the Pennsylvanian and Permian Systems in 

which these fossils occur. Fusulinids have widespread 

geographic distribution and generally are found in abundance in these systems. They first appeared in Late Mississippian time; they flourished during Pennsylvanian 

and most of Permian time; and they became extinct 

slightly before the end of Permian time. Within this time 

span, evolutionary changes were continuous and great. 

The widespread geographic distribution, the great abuitdance of specimens, and the rapid evolution within this 

group of fossils serve to make the genera and species 

of fusulinids valuable for correlating the rocks that contain them. 

Much of the stratigraphic correlation in areas of 

marine Pennsylvanian and Permian rocks is based on 

age relations determined by study of fusulinids. Because 

fusulinids are small enough to be preserved intact in well 

cores and as identifiable fragments in cuttings, they provide an excellent tool to aid in determining the stratigraphic succession in subsurface rocks. Comparison of 

fusulinids from subsurface rocks with those from outcropping rocks is an important method of establishing 

correlation between the two. 

With current and developing interest in the oil and gas 

potent~al of the Rio Grande valley and adjacent areas 

in New Mexico, the data presented herein will help the 

biostratigrapher working with subsurface rocks to 

establish correlation with outcropping Pennsylvanian 

and Permian rocks along the east side of the Rio Granda 

The use of fusulinids as a stratigraphic tool depends, 

in part, upon knowledge of the rock-stratigraphic sequence in areas from which fusulinid collections have 

been made. My studies in the Manzano Mountains have 

enabled me to obtain several hundred collections of 

fusulinid-bearing rocks from precisely defined positions 

in the rock-stratigraphic sequence. 

The Manzano_Mountains, the area of this report, are 

on the east side of the Rio Grande valley and extend 

about 50 mi south from Albuquerque (fig. 1). They are 

25 
26 

fa: 

<t: 

0... 

z 

ex: 

U.J 

I 

fa: 

0 

z 

fa: 

~ 

.....1 

~ fz 

U.J 

u 

FUSULINID FORAMINIFERA, MANZANO MOUNTAINS, NEW MEXICO 

EXPlANATION 

~ ~ Surficial Deposits 

(Quaternary) 

Abo Formation 

(Early Permian) 

~ Bursum Formation 

L.:__j (Wolfcampian) 

[ : PIPw I Wild Cow Formation 

(Early Permian and 

Late Pennsylvanian) 

~ Los Moyos Limestone 

(Desmoinesian) 

Sandia Formation 

(Atokan) 

0 Precambrian 

- - -- Contact, approximately located 

-~-- Fault, dashed where concealed. 

Bar and ball on downthrown side 

_ • .__ ...... _Reverse fault, sawteeth on 

upthrown side 

10 KILOMETER 

"ti 

..,or::: o Santa Fe 

0 

Albuquerque 1r1 

.--study area 

10 MILES 

FIGURE I.-Generalized geologic map of the Manzano Mountains, New Mexico. Modified from Myers (1966, 1967a, 1977), and Myers 

and McKay (1970, 1971, 1972, 1975, 1976). 
FUSULINIDS FROM THE WILD COW AND BURSUM FORMATIONS 27 

fault-block mountains, tilted east, and consist of Pennsylvanian and Permian rocks resting on a Precambrian 

core. Except for the Manzanita Mountains, included 

with the Manzano Mountains in this report, the west 

face of the Manzano Mountains is a near-vertical escarpment of Precambrian rocks with as much as 5,000 ft of 

relief. The map (fig. 1) shows the general distribution 

of these rocks, with the exception of local, minor exposures of the Mississippian Arroyo Penasco Group 

(Armstrong, 1967) which are not shown. 

The Paleozoic rocks that crop out in the Manzano 

Mountains have been assigned to the Mississippian Arroyo Penasco Group, to the Pennsylvanian Sandia Formation, to the Pennsylvanian and Permian Madera 

Group, and to the Permian Bursum and Abo Formations. The Madera Group contains, in ascending order, 

the Los Moyos Limestone, the Wild Cow Formation, 

and the Bursum Formation (Myers, 1973). The faunal 

zone of Fusulinella is in the Sandia Formation, the zone 

of Beedeina is in the Los Moyos Limestone, the zone 

of Triticites is in the Wild Cow Formation and in the 

lower part of the Bursum Formation, and the zone of 

Schwagerina is in the upper part of the Bursum Formation. Fusulinids or other marine fossils have not been 

found in the Abo Formation. 

Fusulinid faunas in the above-mentioned marine rocks 

are abundant and varied; they are common in limestone 

and are found in many calcareous shales; they are rare 

in sandstone. In many of the rocks the fusulinids are 

associated with productid, spiriferid, and other 

brachiopods; crinoid-stem segments; tetracorals; bryozoans, and other marine faunas that suggest shallow 

tropical to subtropical waters. More than 450 samples 

of fusulinid-bearing rock were collected from Pennsylvanian and Lower Permian rocks in the Manzano Mountains. Many of these samples were from stratigraphic 

sections that were measured during various field 

seasons between 1962-1976; other samples were taken 

to provide stratigraphic control. 

Chapter A has illustrated the stratigraphic distribution of the fusulinid faunas from the Middle Pennsylvanian Sandia Formation and Los Moyos Limestone. The 

present report illustrates the stratigraphic distribution 

of the fusulinid faunas from the Upper Pennsylvanian 

and Lower Permian Wild Cow and Bursum Formations. 

The illustrated specimens were prepared from samples 

collected from measured sections, or, less commonly, 

from nearby outcrops that were traced into the measured sections. The three illustrated sections (figs. 2, 3) 

are composite and represent the stratigraphy of the 

Wild Cow and Bursum Formations in the southern, central, and northern parts of the Manzano Mountains. The 

stratigraphic position of each assemblage of fusulinids 

is indicated on each of these composite sections on 

plates 1-13; the various zones and assemblage subzones 

of fusulinids are shown on figure 2; the relations of these 

zones and assemblage subzones to the Missourian, 

Virgilian, and Wolfcampian Series of the Pennsylvanian 

and early part of the Permian Systems is shown on 

figure 4. 

Little information has been published on the 

fusulinids in the Manzano Mountains. Needham (1937, 

p. 12, localities 7, 8, 9) listed several species from the 

northern end of the mountains and from along· U.S. 

Highway 60 at the south end of the mountains. 

Stratigraphic data given by Needham for these 

fusulinids are sketchy. Myers (1966, 1967a, 1969, 1977), 

Myers and McKay (1970, 1971, 1972, 1974, 1976), and. 

Myers, Sharps, and McKay (1981) indicated the stratigraphic position of some fusulinids on stratigraphic sections for various geologic maps of parts of the Manzano 

Mountains. Myers (1973) discussed, in general terms, 

the ages of fusulinids in the Madera Group. Myers 

(chapter A) illustrated the fusulinid faunas and their 

stratigraphic positions from the Sandia Formation and 

from the Los Moyos Limestone in the lower part of the 

Madera Group. 

LATE PALEOZOIC STRATIGRAPHY OF 

THE MANZANO MOUNTAINS 

The Mississippian Arroyo Penasco Group (Armstrong, 1967) is locally present on the northwest side 

of Bosque ~eak where it consists of less than 13ft of 

gray, nonfossiliferous limestone that has a lateral extent of no more than a few hundred feet; it is also present southwest of Tijeras where it is less than 20 ft thick 

and is poorly exposed. For cartographic reasons, these 

rocks were included with the Sandia Formation (Myers 

and McKay, 1971, 1976). 

The oldest Pennsylvanian formation, the Sandia Formation, is of Atokan age (Myers, chapter A) and it lies 

in erosional contact with the Precambrian. The Sandia 

is a slope-forming unit that ranges in thickness from less 

than 10ft to about 300ft; its average thickness is about 

200 ft. The Sandia is mostly olive-drab, micaceous siltstone, sandstone, and conglomerate containing a few 

thin discontinuous beds of impure marine limestone. At 

most localities, the basal beds are conglomerate or 

coarse-grained sandstone derived from nearby Precambrian rocks. The limestone beds contain various species 

of Fusulinella, all of which indicate Atokan age (Myers, 

chapter A). The contact between the Sandia and the 

overlying Los Moyos Limestone is gradational. 

The Los Moyos Limestone, the oldest formation of the 

Madera Group (Myers, 1973) is the lower gray limestone 
28 FUSULINID FORAMINIFERA, MANZANO MOUNTAINS, NEW MEXICO 

c: 

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0 

100 

50 

200 

A 

Assemblage subzone of 

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100 

Los Moyos Limestone 

FIGURE 2.-Composite stratigraphic sections, fusulinid zones and assemblage subzones in Upper Pennsylvanian and 

Lower Permian rocks, Manzano Mountains, New Mexico. Composite stratigraphic sections: 1, southern Manzano 

Mountains (Myers and McKay, 1974); 2, central Manzano Mountains (Myers, 1966, 1967a, 1969); 3, northern Manzano Mountains (Myers, 1970, 1976). Assemblage subzones: A, Triticites nebraskensis; B, T. ohioensis; C, T. asperoides; 

D, T. bensonensis; E, T. cullomensis; F, T. beedei; G, T. whetstonensis; H, T. creekensis. 

member of the Madera Limestone of Read and others 

(1944) and contains massive, cliff-forming, cherty gray 

limestone about 600ft thick. The Los Moyos contains 

a few thin beds of pebble conglomerate, sandstone, and 

siltstone about 200ft above the base. The upper part 

of the formation contains local beds of conglomeratic 

sandstone, sandstone, siltstone, and calcareous shale interbedded with the limestone; these beds become more 

common toward the top of the formation. Fusulinids 

from the Los Moyos are referred to various species of 

Beedeina and Wedekindellina and indicate Desmoinesian age (Myers, chapter A). The uppermost beds of 

the Los Moyos Limestone contain rare specimens 

of Eowaeringella; this fusulinid indicates earliest 
FUSULINIDS FROM THE WILD COW AND BURSUM FORMATIONS 29 

Conglomerate 0 

~ ~Arkose 

~Siltstone ~ 

~Calcareous ~siltstone 

~ Precambrian 

~rocks 

I===~~ Shale 

~ Gypsiferous 

~shale 

~ Calcareous 

~shale 

~Limestone 

~Cherty limestone 

Shaley 

limestone 

FEET 

0 

100 

200 

300 

400 

500 

600 

FIGURE 3.-Explanation of graphic sections on figure 2 and plates 

1-13. Scale applies to plates 1-13 only. 

Missourian age for the top few feet of the Los Moyos 

(chapter A). The contact between the Los Moyos and 

the overlying Wild Cow Formation is erosional. 

The Wild Cow Formation, the middle formation of the 

Madera Group (Myers, 1973) is the arkosic limestone 

member of the Madera Limestone of Read and others 

(1944), and it lies entirely within the zone of Triticites. 

The Wild Cow has an average thickness of about 600 ft 

and contains a rhythmically-deposited sequence of conglomerate, sandstone, siltstone, shale, and limestone 

(Myers, 1973). The conglomerate and sandstone are commonly arkosic, mostly nonmarine and contain debris of 

fossil plants in places; the siltstone and shale are both 

marine and nonmarine; the limestone is mostly marine 

shelf deposits. The Wild Cow has been subdivided into 

three members, from oldest to youngest: Sol se Mete, 

Pine Shadow, and La Casa. The formation disconformably overlies the Los Moyos Limestone of mostly Desmoinesian age and is gradationally overlain by the Wolfcampian Bursum Formation in the southern part of the 

mountains; it is disconformably overlain by the Permian 

Abo Formation in the northern part of the mountains. 

Fusulinids in the Wild Cow Formation are most commonly found in medium- to light-gray calcarenite and 

calcareous shale; they are less commonly found in algal 

micrites; rarely are they found in calcareous sandstone 

where their tests are usually abraded, broken, and may 

show evidence of reworking. 

Reworked fusulinid faunas have been noted in the 

Wild Cow. At USGS locality fl0276, the Pine Shadow 

Member of the Wild Cow Formation contains reworked 

late Desmoinesian fusulinids in a limestone-pebble conglomerate (pl. 13, figs. 19-22). 

SYSTEM SERIES STRATIGRAPHIC UNIT 

Fusulinid zones 

(and assemblage subzones) 

c: Abo Formation ? z Ill 

<(- ·c. v'i.>': . ·;; .~ .,,, .. -t Et Zone of Schwagerina ~Ill Bursum Ill Ill a:E: ~c. Formation w 

0.... 

~ ~ T. creekensis (H) 

La Casa 

Member 

T. whetstonensis (G) 

c: T. beedei (F) 0 

c: -~ ·f "',..""> -~ '%;"•, -~.< 'f./f f} :/';:, ... , : <t .. ,,~ •. :,>:p; 

~ E T. cullomensis (E) -~ ~ 5 Pine Shadow Zone of 

c. ~ Member Triticites T. bensonensis (D) :I 8 "F E! T. asperoides (C) Ill (!) "0 

..e: 1---- ~ ~ r.,.;·:.r;r:;::v::t: :::-c-: ~_:__.! z c: Q) .. 

~ Ill "0 ·;:::: Ill T. ohioensis (B) z :I ~ Sol se Mete 

<( 0 

VI Member > VI ...J T. nebraskensis (A) ~ ~ •;'-'·· < '<.'w~ ' • 

1---- ''"'' z B. sulphurensis* z 

w c: VI Q) 

0.... Ill 0 c: "iii 

Q) ~B B. rockymontana• c: ~gj Zone of 

·o VIE Beede ina E 0·- B. nouamexicana• VI ...J....I 

~ B. insolita• 

Atokan Sandia Zone of F. whitensis* 

part Formation Fusulinella F. deuexa• ,_, ' "-... '.,.. ~ ~ " ·.,? 

• Myers, th1s paper, pt. A, f1g. 2 

FIGURE 4.-Summary of fusulinid zones and assemblage subzones, 

Manzano Mountains, New Mexico. Assemblage subzones: A, 

Triticites nebraskensis; B, T. ohioensis; C, T. asperoides; D, T. bensonensis; E, T. cullomensis; F, T. beedei; G, T. whetstonensis; H, 

T. creekensis. 

The Bursum Formation gradationally overlies the 

Wild Cow Formation in the southern part of the 'mountains and consists of 100ft or more of lenticular beds 

of red, arkosic, hematitic sandstone; red and locally 

green mudstone and siltstone; and greenish-gray marine 

limestone. The Bursum mostly underlies gently sloping alluvium-covered surfaces. The top of the formation 

is the highest marine limestone that underlies the nonmarine Abo Formation. The Bursum thins to the north 

and may have been either replaced laterally by redbeds 

of the Abo Formation, or it may have been removed by 

erosion that accompanied deposition of the Abo. In the 

northern part of the mountains, the formation is absent. 

Field evidence suggests that many of the Bursum red 

beds grade into gray shale and limestone of the upper 

part of the La Casa Member of the Wild Cow Formation. The Bursum contains fusulinids of Early Permian 

age. 

Fusulinid faunas from the Wild Cow and Bursum Formations have been assigned to the zones of Triticites 

and Schwagerina. The zone of Triticites has been subdivided into eight assemblage subzones: Triticites 
30 FUSULINID FORAMINIFERA, MANZANO MOUNTAINS, NEW MEXICO 

nebraskensis, T. ohioensis, T. asperoides, T. 

bensonensis, T. cullomensis, T. beedei, T. 

whetstonesis, and T. creekensis (figs. 2 and 3). 

The Abo Formation, of Permian age, consists of about 

800 ft (Hatchell and others, 1982) of nonmarine, crossbedded, hematitic, locally arkosic conglomerate, sandstone, siltstone, and mudstone. The rocks are mostly 

dark red in the lower. part, grading up into light red at 

the top. Thin lenses of nodular freshwater limestone are 

present locally in the lower part. Impressions of plants 

and fragments are common in the lower part; burrows 

and other trace fossils are common. 

STRATIGRAPHIC DISTRIBUTION 

OF THE FUSULINIDS 

The upper part of the Madera Group, in ascending 

order, includes the Wild Cow Formation and the Bursum Formation. The Wild Cow Formation, of Late Pennsylvanian and Early Permian age, is subdivided, in 

ascending order, into the Sol se Mete, Pine Shadow, and 

La Casa Members. The Bursum Formation, of Early Permian age, has not been subdivided into members. 

Fusulinid faunas are distributed throughout the upper 

part of the Madera Group. Eight assemblage subzones 

have been recognized in the Wild Cow Formation. 

WILD COW FORMATION 

SOL SE METE MEMBER 

The Sol se Mete Member, from 150 ft to 300 ft thick, 

has an average thickness of about 200ft, and it represents nonmarine to marine depositional cycles of early 

Missourian age. The basal beds consist of conglomerate, 

sandstone, siltstone and minor arkose, commonly containing petrified logs. The basal beds range in thickness 

from about 15ft to 100ft or more and are gradationally 

overlain by 30-70 ft of calcareous gray shale and nodular 

limestone. The top of the member is 30-60 ft of locally 

cherty gray limestone that forms cliffs or ledges. The 

member is thinnest at the south end of the mountains 

and thickest in the central part of the mountains. 

Fusulinids are sparse in the southern part of the 

mountains; they are common in the central and northern 

parts. 

ASSEMBLAGE SUBZONE OF TRITICITES NEBRASKENSIS 

The oldest fusulinids from the Sol se Mete Member 

are referred to the assemblage subzone of Triticites 

nebraskensis (A, on fig. 2). Triticites nebraskensis 

Thompson, 1934 is found in the lower 25 ft of the 

member in the southern part of the mountains (pl. 1, 

figs. 22-24) and in the central and northern part of the 

mountains it is found in the lower 100 ft (pl. 3, figs. 

15-25). 

The middle part of the member does not contain 

fusulinids in the southern and northern parts of the 

mountains. Triticites cf. T. celebroides Ross, 1965 (pl. 

2, figs. 10-12) is found at about the middle of the 

member in the central part of the mountains. T. 

celebroides appears to be intermediate in evolutionary 

development between T. nebraskensis and the younger 

T. ohioensis, and is here included in the assemblage subzone of T. nebraskensis. 

ASSEMBLAGE SUBZONE OF TRITICITES OHIOENSIS 

The youngest fusulinids from the member are referred 

to as the assemblage subzone of Triticites ohioensis (B, 

on fig. 2). Fusulinids are sparse in the upper part of the 

member in the southern part of the mountains; however, 

the genus Kansanella sp. (pl. 1, figs. 18-21) has been 

found at one locality, about 40ft below the top. In the 

central part of the mountains, Triticites cf. T. ohioensis Thompson, 1936 (pl. 2, figs. 1-9) dominates the 

fusulinid fauna where it first appears about 20ft below 

the top of the member. In the northern part of the 

mountains, T. ohioensis, (pl. 3, figs. 11-14), and T. aff. 

T. ohioensis (pl. 3, figs. 7-10) are common in the 

limestone in the upper 60 ft of the section. 

PINE SHADOW MEMBER 

The Pine Shadow Member, of early Virgilian age, is 

from 200 ft to 250 ft thick and has an average thickness 

of about 225 ft. The basal beds of the member 

throughout most of the mountains are arkosic conglomerate; however, in the southern part of the mountains they are micaceous siltstone and fine-grained 

sandstone. Fragments of fossil wood and carbonized 

plant debris are common. Thickness of the basal beds 

ranges from 5 ft to more than 100ft, but is generally 

50-90 ft. These basal beds, in most places, are overlain 

by less than 10 ft to about 60 ft of yellow to gray 

siltstone and minor amounts of shale that become 

calcareous toward the top. The upper part of the 

member is mostly ledge- to cliff-forming limestone containing minor amounts of sandstone, siltstone, and 

calcareous shale. The upper beds of limestone are 

generally 50-70 ft thick, but locally may be as much 

as 130 ft thick. 

There are no fusulinid-bearing beds in the lower half 

of the Pine Shadow Member in the southern part of the 

mountains; they are common in the limestone beds in 

the upper half. Fusulinids are common throughout the 
FUSULINIDS FROM THE WILD COW AND BURSUM FORMATIONS 31 

member in the central and northern parts of the mountains. There are relatively few distinctive species that 

are common to the southern, central, and northern parts 

of the mountains; therefore, assignment of faunas to the 

following assemblage subzones is uncertain. 

ASSEMBLAGE SUBZONE OF TRITICITES ASPEROIDES 

The interval representing this assemblage subzone in 

the southern part of the mountains is barren of 

fusulinids and probably contains no marine fossils. In 

the central part of the mountains, the assemblage subzone of Triticites asperoides (C, on fig. 2) is represented 

in two thin beds of limestone between 50 and 7 5 ft above 

the base of the member. Fusulinids from these two 

limestone beds are Millerella? sp. (pl. 4, fig. 17), 

Triticites gilaensis Ross, 1969 (pl. 4, figs. 18-20), and 

Triticites sp. (pl. 4, figs. 15, 16). In the northern part 

of the mountains, the assemblage subzone is represented in a limestone sequence about 55-60 ft above the 

base of the member. The fusulinids from this limestone 

sequence are Triticites aff. T. asperoides Ross, 1965 (pl. 

3, figs. 4-6), and Triticites aff. T. primarius Merchant 

and Keroher, 1939 (pl. 3, figs. 1-3). 

ASSEMBLAGE SUBZONE OF TRITICITES BENSONENSIS 

The interval representing this subzone in the southern 

part of the mountains is barren of fusulinids and no 

marine fossils have been recognized. In the central part 

of the mountains, the assemblage subzone of Triticites 

bensonensis (D, on fig. 2) is represented in a thick sequence of limestone at about the middle of the member. 

The fusulinids from this limestone sequence are 

Triticites sp. (pl. 4, figs. 12-14) and Triticites secalicus 

(Say), 1823 (pl. 4, figs. 5-11). In the northern part of 

the mountains, the assemblage subzone is represented 

in an 80-ft-thick sequence of limestone and shale at 

about the middle of the member. Near the base of this 

sequence, Oketaella? sp. (pl. 6, figs. 12-15) has been 

found. Near the middle of the unit, in a limestone 

quarry, numerous specimens of Triticites bensonensis 

Ross and Tyrrell, 1965 (pl. 6, figs. 9-11) and Dunbarinella aff. D. wildei Kauffman and Roth, 1966 (pl. 

6, figs. 4-8) occur. The top of this sequence contains a 

large, slender, subcylindrical Triticites sp. (pl. 6, figs. 

1-3) in calcareous shale. 

ASSEMBLAGE SUBZONE OF TRITICITES CULLOMENSIS 

This assemblage subzone (E, on fig. 2) is present in 

the uppermost limestone beds of the member in the 

southern part of the mountains. Triticites callus? 

Burma, 1942 (pl. 1, figs. 14-17) is found at the base of 

the uppermost limestone sequence. Between about 30 

ft and 55 ft above the base of the sequence, Triticites 

aff. T. cullomensis Dunbar and Condra, 1927 is found 

(pl. 1, figs. 6-13); this species (pl. 1, figs. 1-5) is also 

present at the top of the Pine Shadow. 

In the central part of the mountains, the assemblage 

subzone of T. cullomensis is marked by the first occurrence of Triticites aff. T. cullomensis Dunbar and Condra, 1927 (pl. 4, figs. 1-4). Fusulinids at the top of the 

Pine Shadow consist of Triticites aff. T. acutuloides 

Ross, 1965 (pl. 5, figs. 18-20), and Triticites aff. T. 

confertoides Ross, 1965 (pl. 5, figs. 15-17). T. aff. T. confertoides, in the central part of the mountains and is 

often associated with hemispherical to lenticular 

colonies of cryptozoon-like bodies at the top of the uppermost bed (Myers and McKay, 1972, as algal balls 

in map unit C). The average diameter of these colonies 

is 1.5-2 inches. 

In the northern part of the mountains, the assemblage 

subzone is found in the upper 120 ft of the member 

where the rocks are mostly limestone and calcareous 

shale. Fusulinids are abundant in the lower half of the 

interval; they have not been found in the upper half. The 

oldest fusulinid from this subzone is Triticites cf. T. 

turgidus Dunbar and Henbest, 1942 (pl. 7, figs. 20-22), 

which is common near the base. The middle of the interval is characterized by numerous specimens of Triticites 

aff. T. confertoides Ross, 1965 (pl. 7, figs. 17-19). 

LA CASA MEMBER 

The La Casa Member, of late Virgilian and early 

Wolfcampian age, is the uppermost member of the Wild 

Cow Formation. It is about 290 ft thick at the type section in the southern part of' the mountains. The upper 

beds of the member have been removed by late Tertiary 

or Holocene erosion in the central and most of the northern parts of the mountains. In Tijeras Canyon, in roadcuts along Interstate Highway 40, the member is about 

335ft thick (Myers and McKay, 1976, section 2). 

In the southern part of the mountains, the member 

consists of about 120ft of poorly exposed siltstone and 

shale at the base; about 100ft of ridge-forming, lightgray calcarenite; as much as 40 ft of red and gray shale 

and yellowish-green calcareous sandstone; and, at the 

top, about 30ft of light-olive-gray calcarenite. Farther 

north the basal beds of the member are arkosic, and 

locally conglomeratic; these beds are about 30ft thick 

in the Tajique area and, in the Sol se Mete area, are 

about 50ft thick. In both the Tajique and Sol se Mete 

areas, the medial 100-ft-thick bed of calcarenite in the 

southern part of the mountains has been replaced by 

alternating beds of limestone, siltstone, sandstone, and 
32 FUSULINID FORAMINIFERA, MANZANO MOUNTAINS, NEW MEXICO 

shale. Northeast of Tijeras, the upper limestone beds 

of the member have been replaced by red beds and a 

few thin beds of gray calcarenite (Myers and McKay, 

1976). Three assemblage subzones have been recognized 

in the La Casa Member: Triticites beede~ T. whetstonensis, and Triticites creekensis (fig. 2). 

ASSEMBLAGE SUBZONE OF TRITICITES BEEDE! 

This assemblage subzone (F, on fig. 2) is represented 

throughout the Manzano Mountains. In the southern 

part of the mountains, the interval of rocks that contains the subzone is in the lower 145ft of the member. 

The oldest fusulinids in the subzone, Triticites cf. T. arcuosoides Ross, 1969 (pl. 8, figs. 19-21) are found in 

nodular limestone about 7 4 ft above the base of the 

member. Somewhat higher in the section, a few feet 

below the thick medial calcarenite, is Triticites cf. T. 

beedei Dunbar and Condra, 1927 (pl. 8, figs. 12-18). The 

basal beds of the thick calcarenite contain Triticites aff. 

T. birdspringensis Cassity and Langenheim, 1966 (pl. 

8, figs. 9-11). The top of the subzone is marked by 

Triticites cf. T. callosus Dunbar and Henbest, 1942 (pl. 

8, figs. 5-8) and Triticites aff. T. beedei Dunbar and Condra, 1927 (pl. 8, figs. 1-4). 

In the central part of the mountains, the oldest 

fusulinids from the assemblage subzone are from thin 

beds of limestone about 25 ft above the base of the 

member. An assemblage of fusulinids from this limestone consists of Triticites cf. T. beedei Dunbar and 

Condra, 1927 (pl. 5, figs. 12-14); Millerella? sp. (pl. 5, 

figs. 7, 10); Triticites aff. T. confertoides Ross, 1965 (pl. 

5, figs. 9, 11); and Triticites aff. T. nealensis Ross, 1965 

(pl. 5, figs. 5, 6, 8). Another thin bed of limestone, about 

45ft above the base of the member contains Triticites 

aff. T. beedei Dunbar and Condra, 1927 (pl. 5, figs. 3, 

4). The upper thin bed of limestone whose stratigraphic 

position is uncertain, but is probably about 55 ft above 

the base of the member, contains Oketaella sp. (pl. 5, 

figs. 1, 2). In many places the three limestone beds just 

mentioned have been replaced by channel-fill deposits 

of conglomerate, sandstone, and siltstone. A thin bed 

of limestone at the top of these channel-fill deposits, 

about 92 ft above the base of the member, contains 

Triticites cf. T. plummeri Dunbar and Condra, 1927 (pl. 

11, figs. 1 7-19). 

The oldest fusulinids from the assemblage subzone 

in the northern part of the mountains are from calcareous claystone about 40ft above the base of the member. 

These fusulinids are Triticites cf. T. beedei Dunbar and 

Condra, 1927 (pl. 7, figs. 14-16) and Dunbarinella sp. 

(pl. 7, figs. 12, 13). About 55 ft above the base, in a 

limestone that caps Cedro Peak, Triticites cf. T. beedei 

(pl. 7, figs. 9-11), Dunbarinella sp. (pl. 7, fig. 8), and 

Millerella? sp. (pl. 7, fig. 7) are found. About 60 ft above 

the base, Triticites cf. T. cuchilloensis Needham, 1937 

(pl. 7, figs. 4-6) is found. Triticites sp. (pl. 7, figs. 1-3) 

is found in nodular limestone about 110 ft above the 

base. 

About 145ft above the base of the member, the same 

Triticites (pl. 12, figs. 12-15) as on pl. 7 (figs. 1-3) is 

found. A calcareous shale and nodular limestone about 

180 ft above the base contains Triticites aff. T. 

cameratoides Ross, 1965 (pl. 12, figs. 10, 11) and Ozawainella? sp. (pl. 12, fig. 9). About 240 ft above the base, 

a massive limestone contains Triticites aff. T. plummeri 

Dunbar and Condra, 1927 (pl. 12, figs. 6-8). Exposures 

in cuts along Interstate Highway 40 (old U.S. Highway 

66) have yielded Dunbarinella sp. (pl. 12, fig. 4) and 

Triticites aff. T. plummeri (pl. 12, figs. 3, 5) from about 

64ft below the base of the Permian Abo Formation. 

ASSEMBLAGE SUBZONE OF TRITICITES WHETSTONENSIS 

This assemblage subzone (G, on fig. 2) includes that 

part of the La Casa Member that contains the latest 

Pennsylvanian fusulinids. In the southern part of the 

mountains, the base of the subzone is marked by the 

first appearance of Triticites ventricosus var. sacramentoensis Needham, 1937 (pl. 9, figs. 9-17). Triticites aff. 

T. beedei Dunbar and Condra, 1927 (pl. 10, figs. 16-19) 

has been found near the top of the assemblage subzone. 

In the central part of the mount~ns, the subzone is 

characterized, near its base, by an obese form of 

Triticites cf. T. plummeri Dunbar and Condra, 1927 (pl. 

11, figs. 17-19). Triticites cf. T. whetstonensis Ross and 

Tyrrell, 1965 (pl. 11, figs. 6-16) is common in many of 

the upper limestone beds of the member. 

In the northern part of the mountains, the sole 

representative of this assemblage subzone is Triticites 

aff. T. rhodesi Needham, 1937 (pl. 12, figs. 1, 2) at the 

top of the La Cas a Member. 

ASSEMBLAGE SUBZONE OF TRITICITES CREEKENSIS 

The fusulinids in this assemblage subzone (H, on 

fig. 2) are all referred to rocks of earliest Permian age. 

These rocks include the uppermost beds of the La Casa 

Member of the Wild Cow Formation and part of the 

overlying Bursum Formation. 

In the southern part of the mountains, the base of the 

uppermost limestone beds of the La Casa Member contains Triticites aff. T. pinguis Dunbar and Skinner, 1937 

(pl. 9, figs. 1, 2, 5), and Leptotriticites sp. (pl. 9, figs. 

3, 4); also, in these same basal beds, Triticites cf. T. 

creekensis Thompson, 1954 (pl. 10, figs. 13-15) is found. 
FUSULINIDS FROM THE WILD COW AND BURSUM FORMATIONS 33 

Tiiticites sp. (pl. 10, figs. 9-12) occurs a few feet above 

the basal beds. At the top of the member, Tiiticites cf. 

T. creekensis Thompson, 1954 (pl. 10, figs. 6-8), Triticites 

pinguis Dunbar and Skinner, 1937 (pl. 10, figs. 4, 5), 

Millerella? sp. (pl. 10, fig. 3), and Schubertella sp. (pl. 10, 

figs. 1, 2) are found. 

In the central part of the mountains, in the uppermost 

beds of the member, the subzone is marked by Triticites 

sp. (pl. 11, figs. 1-3, 5), and Leptotriticites sp. (pl. 11, 

fig. 4). The assemblage subzone is probably not present 

in the northern part of the mountains. At one locality 

in the northern part of the mountains, sparse limestone 

nodules that weather from red beds beneath the Permian 

Abo Formation contain rare specimens of Tiiticites cf. 

T. nealensis Ross, 1965 (pl. 13, figs. 13-18) referred to 

this assemblage subzone. These nodules are from a zone 

between 3 and 5 ft below the base of the Abo. 

The fusulinid faunas of the Wild Cow Formation 

change significantly from the early Missourian faunas 

at the base of the formation to the early Wolfcampian 

faunas at the top. The faunas are similar laterally and 

mark narrow zones that have been identified as 

assemblage subzones (fig. 2). Deposition of the carbonate rocks that contain these assemblage subzones 

was in a marine tropical to subtropical shelf environment of shallow to moderate water depth. Carbonate 

deposition was repeatedly interrupted by incursions of 

nearshore and nonmarine terrigenous sediments that 

disrupted the faunal succession. These disruptions may 

have been local, as in the southern part of the mountains where the assemblage subzones of Triticites 

asperoides and T. bensonensis are not represented in 

the Pine Shadow Member, or it may have been regional 

throughout the Manzano Mountains where marine 

faunas of late Missourian time and parts of Virgilian 

time are absent (fig. 4). Deposition of marine rocks and 

succession of fusulinid faunas was apparently continuous or nearly continuous across the boundary between 

Pennsylvanian and Permian time. 

BURSUM FORMATION 

The Bursum Formation (fig. 1), the uppermost formation of the Madera Group, is present only in the 

southern part of the Manzano Mountains. Exposures 

of the Bursum are generally poor, and no complete section was measured or described. It consists (Myers, 

1977) of about 250 ft of reddish-brown, arkosic, 

hematitic, crossbedded, locally conglomeratic sandstone, red and gray shale, and olive-gray limestone. The 

base of the formation is gradational from the underlying La Casa Member of the Wild Cow Formation. The 

top of the formation is the top of the highest marine 

limestone. It is disconformably overlain by the Abo Formation. The assemblage subzone of Triticites creekensis is present in the lower beds of the Bursum. 

Limestone and nodular limestone about 50 ft above the 

base of the formation contain Triticites creekensis 

Thompson, 1954 (pl. 13, figs. 9-12). Still in the lower 

part of the Bursum, but probably stratigraphically 

above these fusulinids, Leptotriticites sp. (pl. 13, figs. 

6, 8) and Triticites aff. T. creekensis Thompson, 1954 

(pl. 13, fig. 7) have been found. Still in the lower part 

of the formation, Triticites aff. T. creekensis (pl. 13, figs. 

3-5) has been found in algal limestone nodules. 

The youngest fusulinids found in the area are 

Schwagerina pinosensis Thompson, 1954 (pl. 13, figs. 

1, 2) from a 12-foot-thick bed of brownish-gray, wavybedded calcarenite at about the middle of the formation. 

These fusulinids are from the zone of Schwagerina, 

which is not represented elsewhere in the Manzano 

Mountains. 

FAUNAL CORRELATIONS 

Correlations of the fusulinid assemblage subzones 

with fusulinid assemblages from west Texas, central 

Texas, the mid-continent region, and parts of the western and southwestern United States are attempted in 

this chapter. Many of the fusulinid faunas from the midcontinent region, particularly those of Virgilian age, 

have not been illustrated or described. Where comparisons are made with these faunas, reference is made 

to unfigured material in my collections. The stratigraphic positions of the various assemblage subzones 

in the Manzano Mountains are shown on figure 2. 

ASSEMBLAGE SUBZONE OF 

TRITICITES NEBRASKENSIS 

The assemblage subzone of Triticites nebraskensis, 

of early Missourian age, embraces the lower part of the 

Sol se Mete Member of the Wild Cow Formation. It is 

equivalent to the Triticites celebroides assemblage subzone of Ross (1965, p. 1159) from the lower part of the 

Gaptank Formation in west Texas. The fauna is the 

same as that illustrated by Myers (1960, pl. 16) from 

the Brownwood Shale Member of the Graford Formation in central Texas. 

In the mid-continent region, T. nebraskensis, recorded 

as T. exiguus by Dunbar and Condra (1927), is from the 

Avoca Limestone of Nebraska and the Cherryvale Shale 

of Missouri. 
34 FUSULINID FORAMINIFERA, MANZANO MOUNTAINS, NEW MEXICO 

Thompson and Thomas (1953, p. 31) have reported T. 

nebraskensis from the Casper Formation about 176ft 

above its base in Wyoming. In the Wasatch Mountains 

of Utah, Thompson, Verville, and Bissell (1950) described T. springvillensis from about 12,040 ft above 

the base of the Oquirrh Formation and near the base 

of the Missourian part of that formation. The evolutionary development ofT. springvillensis is similar to 

that of T. nebraskensis and the two species may have 

been contemporaneous. Rich (1961, p. 1170) has recorded T. springvillensis from beds 1,975-2,000 ft above 

the base of the Bird Spring Formation in Clark County, Nevada. Triticites nebraskensis is present in a 

limestone bed 18 ft below the top of the Lead Camp 

Limestone in the San Andres Mountains, in southern 

New Mexico (Bachman and Myers, 1969, p. C23). 

The J oyita Hills, 23 mi southwest of the Manzano 

Mountains in Socorro County, contain a short section 

of Pennsylvanian rocks (Kottlowski and Stewart, 1970). 

At the top of this section, earliest Missourian rocks are 

found and they contain Triticites nebraskensis 

associated with T. riograndensis and T. liosepta 

Stewart, 1970. 

Few, if any, species of Triticites older than T. nebraskensis have been reported from the mid-continent 

region or western United States. This assemblage subzone appears to define a biostratigraphic position that 

appeared during early Missourian time. 

ASSEMBLAGE SUBZONE OF 

TRITICITES OHIOENSIS 

The assemblage subzone of Triticites ohioensis lies 

in the upper part of the Sol se Mete Member of the Wild 

Cow Formation. In west Texas, in the Gaptank Formation, the assemblage subzone of T. collus (Ross, 1965, 

p. 1162) is probably equivalent to that ofT. ohioensis, 

although there are no species in common. In central 

Texas, the Manzano faunas are equivalent to faunas 

from the Adams Branch Limestone Member of the 

Graford Formation where T. muscerda Myers, 1967b, 

a close relative to T. ohioensis, and Kansanella 

voluminosa Myers, 1967b are found (Myers, 1960, 

1967b). In the mid-continent region, the T. ohioensis 

fauna is found in the Brush Creek and Cambridge 

Limestone Members of the Conemaugh Formation in 

Galla County, Ohio (Thompson, 1936, p. 682). Elsewhere, the T. ohioensis fauna has been reported from 

the Livingston Limestone in Edgar County, Illinois 

(Dunbar and Henbest, 1942, p. 131), and also from the 

Winterset Limestone Member of the Dennis Limestone 

in Iowa (Thompson, 1957, p. 314). 

In the western part of the United States, T. cf. T. ohioensis has .been recorded from the Whetstone Mountains, 

Arizona, iri the Horquilla Limestone about 800ft above 

the base .. (Ross, 1965, p. 632). 

Field evidence in the Manzano Mountains indicates 

that younger Missourian strata, if they were deposited, 

have been removed by erosion. The basal sandstone and 

conglomerate beds of the overlying Pine Shadow 

Member represent subaerial erosion and are of probable Virgilian age. Thus, a hiatus, represented by terrigenous rocks in the Manzano Mountains and by the 

absence of fusulinid faunas that are present in the midcontinent, represents the upper part of the Kansas City 

Group and all of the Lansing and Pedee Groups in the 

midcontinent. 

ASSEMBLAGE SUBZONE OF 

TRITICITES ASPEROIDES 

The assemblage subzone of Triticites asperoides, of 

early Virgilian age, is found in the lower 75ft of the Pine 

Shadow Member. The fauna is similar to that described 

by Ross (1965, p. 1160) from his bed Gin the Gaptank 

Formation, west Texas; it may be approximately 

equivalent to his assemblage subzone ofT. moorensis. 

This fauna, although there are no species in common, 

has a similar evolutionary development to that figured 

by Myers (1960) (pl. 18, figs. 10-23) from the Bluff Creek 

Shale Member of the Graham Formation in central 

Texas. It resembles material in my collections from the 

Douglas Group and lower part of the Shawnee Group 

of early Virgilian age in Kansas. The fauna of this 

assemblage subzone has not been recognized in Utah, 

Nevada, or Arizona. 

ASSEMBLAGE SUBZONE OF 

TRITICITES BENSONENSIS 

The evolutionary development of the various species 

of fusulinids in the assemblage subzone of Triticites bensonensis is similar to that in Ross' (1965, p. 1160) ibeds 

Hand I in the Gaptank Formation, west Texas. The 

faunas have a close similarity to that from the Gunsight 

Limestone Member of the Graham Formation in central Texas (Myers, 1960) (pl. 18, figs. 1-3; pl. 19, figs. 

1-15). The fauna resembles material from my collections 

from the Shawnee Group in Kansas. The species from 

which the subzone is named was described by Ross and 

Tyrrell (1965, p. 619) from 50 to 120ft above the base 

of the Earp Formation in the Whetstone Mountains, 

Arizona and has also been recorded from about :tOO ft 
FUSULINIDS FROM THE WILD COW AND BURSUM FORMATIONS 35 

above the highest Missourian fusulinids in the Gila 

Mountains, Arizona. 

ASSEMBLAGE SUBZONE OF 

TRITICITES CULLOMENSIS 

The assemblage subzone of Triticites cullomensis is 

present in the upper beds of the Pine Shadow Member. 

The presence of T. aff. T. cullomensis in the upper part 

of this assemblage subzone suggests correlation with 

the fauna between beds I and J in the Gaptank Formation in west Texas (Ross, 1965, p. 1160); it also suggests 

correlation with the faunas of the I van Limestone 

Member of the Graham Formation in central Texas 

(Myers, 1960, pl. 21). In the mid-continent region, T. 

mediocris angustus was described from the Greenup 

Limestone in Illinois (Dunbar and Henbest, 1942, 

p. 135); T. cullomensis, a closely related species, has 

been found in the Bell Limestone Member of the 

Lecompton Limestone at about the middle of the 

Shawnee Group in Kansas. The T. cullomensis fauna 

is in common with the Virgilian part of the ·Furner 

Valley Limestone in the East Tintic Mountains, Utah 

(Morris, Douglass, and Kopf, 1977, fig. 4). T. muddiensis Cassity and Langenheim, 1966 was described by 

them (p. 950) from the Virgilian portion of the Bird 

Spring Formation in Arrow Canyon, Clark County, 

Nevada; T. muddiensis appears to be closely related to 

T. cullomensis and probably occupies a similar 

stratigraphic position. T. cullomensis has been reported 

by Sabins and Ross (1963, p. 328) from the Virgilian 

part of the Horquilla Limestone in the Chiricahua 

Mountains of southeastern Arizona, and by Ross (1965, 

p. 632) as T. cf. T. cullomensis from the Whetstone 

Mountains, Ariz. 

The fusulinid faunas from the preceeding three 

assemblage subzones represent deposition during early 

Virgilian time during which the Douglas and lower half 

of the Shawnee Groups were deposited. A faunal hiatus 

(fig. 4) is present which represents the time of deposition of the upper part of the Shawnee Group. The sandstone and conglomerate at the base of the overlying La 

Casa Member represent a period of subaerial erosion in 

the Manzano Mountains during this time. 

ASSEMBLAGE SUBZONE OF TRITICITES BEEDE/ 

The assemblage subzone of Triticites beedei is in the 

lower part of the La Casa Member of the Wild Cow Formation. The base of the assemblage subzone is marked 

by the appearance of T. cf. and aff. T. beedei Dunbar 

and Condra, 1927 and T. cf. T. arcuosoides Ross, 1969. 

The fauna of the assemblage subzone has elements in 

common with those of T. cameratoides and T. neatensis in bed J of the Gaptank Formation (Ross, 1965, 

p. 1160, 1165). The fauna resembles material in my collections from the lower part of the W abaunsee Group 

in Kansas. It is similar to that reported by Sabins and 

Ross (1963, p. 328-329) from near the top of the Horquilla Limestone and the lower part of the Earp Formation in southeast Arizona, where species in common 

with the Manzano Mountains fauna are T. cuchilloensis Needham, 1937 and T. plummeri Dunbar and 

Condra, 1927. 

ASSEMBLAGE SUBZONE OF 

TRITICITES WHETSTONENSIS 

The assemblage subzone of Triticites whetstonensis 

contains the youngest Pennsylvanian fusulinids in the 

Manzano Mountains. Faunal representatives of this 

assemblage subzone are not present in the type area of 

the Gaptank Formation in west Texas. In central Texas, 

the faunas illustrated by Myers (1960, pl. 22, 23) from 

the Breckenridge and Chaffin Limestone Members of 

the Thrifty Formation are similar to those of the 

assemblage subzone ofT. whetstonensis. They are at 

a similar evolutionary stage to those from the upper 

part of the W abaunsee Group in Kansas. The T. 

whetstonensis fauna is present in the lower part of the 

Earp Formation in the Whetstone Mountains (Ross and 

Tyrrell, 1965, p. 620). 

ASSEMBLAGE SUBZONE OF 

TRITICITES CREEKENSIS 

The assemblage subzone of Triticites creekensis, of 

early Wolfcampian age, is found in the upper beds of 

the La Casa Member and in the lower part of the Bursum Formation. Triticites pinguis, from this assemblage subzone, has been found in the upper beds of the 

La Cas a Member; this species occurs in the Neal Ranch 

Formation in the area of the Wolf Camp Hills, west 

Texas (Ross, 1963, p. 111). The types ofT. creekensis 

are from the Camp Creek Shale Member of the Pueblo 

Formation in central Texas where it is associated with 

Schwagerina campensis (Thompson, 1954, p. 43). Leptotriticites sp., which is associated with T. creekensis 

in the Manzano Mountains, is found in the Waldrip 

Shale Member of the Pueblo Formation in central 

Texas; it is a common fusulinid in the Council Grove 

Group in Kansas (Thompson, 1954, as Dunbarinella). 
36 FUSULINID FORAMINIFERA, MANZANO MOUNTAINS, NEW MEXICO 

T. creekensis has been reported by Cassity and 

Langenheim (1966, p. 939) from the basal beds of the 

Wolfcampian portion of the Bird Spring Formation at 

Arrow Canyon in Clark County, Nevada. 

ZONE OF SCHWAGERINA 

The sole representative of the genus Schwagerina in 

the study area is Schwagerina pinosensis Thompson, 

1954 from about the middle of the Bursum Formation. 

S. pinosensis is an early species of the genus and, as 

such, represents early Wolfcampian time. Species of 

similar evolutionary development have been recorded 

from the Neal Ranch Formation in west Texas (Ross, 

1963); from the Pueblo Formation in central Texas 

(Thompson, 1954); from the Council Grove Group in 

Kansas (Thompson, 1954); from the Casper Formation 

in Wyoming (Thompson and Thomas, 1953); from the 

Furner Valley Limestone in the East Tin tic Mountains 

in Utah (Morris, Douglass, and Kopf, 1977); from the 

Bird Spring Formation, Arrow Canyon, Nevada (Cassity and Langenheim, 1966); and from the Oscura and Los 

Pinos Mountains, New Mexico (Thompson, 1954). 

The fusulinid assemblage subzones defined in the 

preceding chapters have been correlated with similar 

fusulinid assemblages in west- and north-central Texas, 

the mid-continent region, parts of Wyoming, Utah, 

Nevada, southeastern Arizona, and parts of New Mexico south of the Manzano Mountains. The sequence of 

fusulinid assemblages indicates faunal hiatuses in late 

Missourian and in early and mid-Virgilian time. These 

gaps in the faunal record are represented in the Manzano Mountains by terrigenous clastic rocks that suggest nearby uplift and erosion. The fusulinid and 

stratigraphic field evidence suggests that marine 

deposition was essentially continuous across the boundary between Pennsylvanian and Permian time. 

COLLECTING LOCALITIES 

All listed localities are in New Mexico and, unless 

otherwise indicated, are on U.S. Geological Survey 

7V2-minute topographic quadrangle maps that were 

published in 1952 (Mount Washington), 1954 (Capilla 

Peak, Sedillo, Tajique, Tijeras, Torreon, Torreon 

15-minute), and 1972 (Scholle). All collections were made 

by the author between 1962-1975. Access to collection 

sites located on Isleta Indian Pueblo land and the Sandia Military reservation may be difficult. Authorization 

to enter should be obtained from the Isleta Pueblo 

government at Isleta, or from military authorities at 

Sandia Base in Albuquerque. 

All members listed are from the Wild Cow Formation. 

All locality numbers have a USGS prefix. All topographic quadrangles listed are 7 Y2-minute unless otherwise noted. 

f10201. Pine Shadow Member, Tajique quadrangle, Torrance County. 

From a 12-ft-thick bed of ledge-forming limestone; overlies 63ft 

of poorly-exposed arkosic sandstone that is the base of the 

member. About 210ft above base of measured section 6 (Myers, 

1966). Base of section is in SEl/4, sec. 8, T. 6 N., R. 6 E.; 0.35 

mi, S. 17° E. from Tajique Cabin. 

f10202. Sol se Mete Member, Tajique quadrangle, Torrance County. From 3 ft below top of member in section 5 (Myers, 1966). 

North edge, NW1/4SW1/4, sec. 32, T. 7 N., R. 6 E., in the stream 

channel of Canon del Troncon Negro, near junction with tributary 

canyon from the northwest. 

f10203. Pine Shadow Member, Tajique quandrangle, Torrance County. From 132 ft above base of member. See f10202 for locality. 

f10204. Pine Shadow Member, Tajique quadrangle, Torrance County. 

From 225 ft above base of member. See f10202 for locality. 

f10205. Pine Shadow Member, Tajique quadrangle, Torrance County. 

From 156ft above base of member; 311 ft above base of measured 

section. Base of section is in the stream channel of a tributary 

to Canon de Ia Perra, about 700 ft north of junction; NW1/4NW1/4, 

sec. 22 T. 7 N., R. 5 E. Section measured northeast to crest of ridge. 

f10206. Pine Shadow Member, Tajique quadrangle, Torrance County. 

From about 90ft above base of member; SE1/4NW1/4SW1/4, sec. 

23, T. 7 N., R. 6 E. 

f10207. Sol se Mete Member, Tajique quadrangle, Torrance County. Measured section 10 (Myers, 1966); from 25ft above base of 

section. North side of Tajique Canyon; 1.3 mi northwest of Tajique; 0.3 mi. east of Cibola National Forest boundary. 

f10208. Sol se Mete Member, Tajique quadrangle, Torrance County. See f10207 for locality. About 60 ft above base of section. 

f10209. Sol se Mete Member, Tajique quadrangle, Torrance County. See f10207 for locality. About 17 ft below top of member. 

f10210. Sol se Mete Member, Tajique quadrangle, Torrance •County. From yellowish-brown sandy limestone about 25ft above base 

of member. In roadcut 0.7 mi due west from southwest corner, 

sec. 5, T. 7 N., R. 6 E., on north side Los Moyos Canyon. Isleta 

Pueblo. 

f10211. Pine Shadow Member, Tajique quadrangle, Torrance County. 

From 5-ft-thick bed of medium-dark-gray calcarenite in Canyon 

Largo, about 1/2 mi west of junction with Canyon de Chilili. 

f10212. La Casa Member, Tajique quadrangle, Torrance County. 

From northeast corner, SW1/4SW1/4, sec. 8, T. 7 N., R. 6 E. 

f10213. La Casa Member, Tajique quadrangle, Torrance County. 

From medium-gray, hackley-fractured, well-jointed calcarenite 

near top of hill 7780; northwest corner, sec. 1, T. 6 N., R. 5 E. 

f10214. Pine Shadow Member, Tajique quadrangle, Torrance County. 

From medium- to light-gray calcarenite, 12ft below top of member; 

measured section 6 (Myers, 1966). 

f10215. La Casa Member, Sedillo quadrangle, Bernalillo County. 

Highway cut on U.S. Highway 66 (destroyed by more recent cuts 

along Interstate Highway 40), 4.2 mi east of junction with New 

Mexico Highway 14 at Tijeras. From SE1/4SW1/4, sec. 5, T. 10 

N., R. 6 E. From 64 ft below base of Abo Formation. 

f10216. La Casa Member, Sedillo quadrangle, Bernalillo County. See 

f10215 for location. Top of member; overlain by red beds of Abo 

Formation. 
FUSULINIDS FROM THE WILD COW AND BURSUM FORMATIONS 37 

f10217. La Casa Member, Torreon quadrangle, Torrance County. 

About 15 ft below base of Abo Formation; at head of southdraining ravine into Canyon Nuevo; 1.28 miN. 30° W. from church 

at Manzano; 0.43 mi N. 82° W. from junction with road to 

Candelaria Place. Top of section 6 (Myers, 1967a). 

f10218. La Casa Member, Torreon quadrangle, Torrance County. 

From section 2 (Myers, 1967a), 25 ft above base of member. 

f10219. La Casa Member, Torreon quadrangle, Torrance County. 

From section 2 (Myers, 1967a), 43 ft above base of member. 

f10220. La Casa Member, Torreon quadrangle, Torrance County. 

From section 2 (Myers, 1967a), 92 ft above base of member. 

f10221. La Casa Member, Torreon quadrangle, Torrance County. Top 

of section 1 (Myers, 1967a); 1.9 miN. 60° W. from church at Manzano; about 500 ft east of west edge of quadrangle; from nodular 

arkosic limestone that caps hill. 

f10222. La Casa Member, Torreon quadrangle, Torrance County. 

From an estimated 10ft below base of Abo Formation; in bed of 

Canyon Nuevo, 0. 7 miN. 27 ° W. from church at Manzano; 0.45 mi 

S. 16° W. from road junction to Candelaria Place. 

f10223. La Casa Member, Torreon quadrangle, Torrance County. 

From calcareous sandstone in bed of Canyon Nuevo about 20-25 ft 

below base of Abo Formation; 1.1 miN. 34 oW. from church at 

Manzano. 

f10224. Sol se Mete Member, Torreon quadrangle, Torrance County. Lower part of uppermost 42-ft-thick bed of limestone. From 

section 3 (Myers, 1967a). 

f10225. La Casa Member, Sedillo quadrangle, Bernalillo County. In 

quarry on south side of hill 7758 where power line meets road to 

abandoned building site, NE1/4NE1/4, sec. 17, T. 9 N., T. 6 E. 

f10226. Sol se Mete Member, Torreon 15minute quadrangle, V alencia County. Top of member from light-olive-gray calcarenite. From 

section 2 (Myers and McKay, 1974). 

f10227. Pine Shadow Member, Torreon 15-minute quadrangle, Valencia County. Medium- to dark-gray, weathers yellowish-brown, 

calcarenite, 5 ft thick; 140 ft above base of member. Section 2 

(Myers and McKay, 1974). 

f10228. Pine Shadow Member, Torreon 15minute quadrangle, Valencia County. About 180 ft above base of member from top of 25-ftthick bed of cliff-forming limestone. Section 2 (Myers and McKay, 

1974). 

f10229. La Casa Member, Torreon 15-minute quadrangle, Valencia 

County. From 53ft above base of member. Section 2 (Myers and 

McKay, 1974). 

f10230. La Casa Member, Torreon 15-minute quadrangle, Valencia 

County. From 72ft below top of member. Section 2 (Myers and 

McKay, 1974). 

f10231. La Casa Member, Torreon 15-rr;tinute quadrangle, Valencia 

County. From 13ft below top of member. Section 2 (Myers and 

McKay, 1974). 

fl0232. La Casa Member, Mount Washington quadrangle, Bernalillo 

County. From limestone nodules about 300ft N. 10° W. from Manzano Lookout Tower; SE1/4NE1/4NW1/4, sec. 34, T. 9 N., R. 5 

E. Sandia Military Base. 

f10233. Pine Shadow Member, Torreon 15-minute quadrangle, Valencia County. From 5 ft below top of member in a 64-ft-thick sequence of calcarenite; from section 3 (Myers and McKay, 1974). 

f10234. La Casa Member, Torreon 15-minute quadrangle, Valencia 

County. About 74ft above base of member in poorly exposed sequence of sandstone, red shale, and nodular limestone. Section 

3 (Myers and McKay, 1974). 

f10235. La Casa Member, Torreon 15-minute quadrangle, Valencia 

County. In 25-ft-thick bed of light-olive to medium-gray, cherty 

calcarenite, that is about 112ft below top of member. Section 3 

(Myers and McKay, 1974). 

f10236. La Casa Member, Torreon 15-minute quadrangle, Valencia 

County. From base of uppermost limestone bed of member, 32 ft 

below base of Bursum Formation in cherty calcarenite. Section 

3 (Myers and McKay, 1974). 

f10237. Pine Shadow Member, Mount Washington quadrangle, Bernalillo County. About 25 ft below basal sandstone of La Casa 

Member. Section 3 (Myers and McKay, 1970). 

f10238. La Casa Member, Mount Washington quadrangle, Bernalillo 

County. About 60 ft above base of member in poorly exposed 

limestone. Section 3 (Myers and McKay, 1970). 

f10239. La Casa Member, Mount Washington quadrangle, Bernalillo 

County. Nodular limestone about 110ft above base of member. 

Section 3 (Myers and McKay, 1970). 

fl0240. La Casa Member, Mount Washington quadrangle, Bernalillo 

County. Nodular limestone about 145ft above base of member. 

Section 3 (Myers and McKay, 1970). 

f10241. Sol se Mete Member, Mount Washington quadrangle, Bernalillo County. Above 35ft below top of member. Section 3 (Myers 

and McKay, 1970). 

f10242. La Casa Member, Capilla Peak quadrangle, Torrance County. South side of Bartolo Canyon at approximate elevation 

7,950 ft; 600ft N. 40° W. from hill 8066; small, rare fusulinids 

in light-olive-gray to yellowish-gray calcarenite. 

f10243. Pine Shadow Member, Capilla Peak quadrangle, Torrance 

County. Top of member in bed that contains balls of Cryptozoonlike algae. About 2.3 mi S. 27 o E. from lookout tower on Capilla 

Peak. 

f10244. La Casa Member, Torreon 15-minute quadrangle, Torrance 

County. About 3 ft above bottom of ravine in poorly exposed 

medium-gray calcarenite. North side of Red Canyon, 3,200 ft due 

south of hill 8061; approximate elevation 7,820 ft. 

f10245. Sol se Mete Member, Torreon 15-minute quadrangle, Torrance County. Dark-gray calcarenite about 25 ft above top of Los 

Moyos Limestone; SW1/4SW1/4SW1/4, sec. 20, T. 4 N., R. 5 E., 

in bottom of ravine at approximate elevation 7,180 ft. 

f10246. La Casa Member, Torreon 15-minute quadrangle, Torrance 

County. Light-olive-gray, cherty calcarenite contains large ven· 

tricose fusulinids; northeast corner sec. 31, T. 4 N., R. 5 E., at 

approximate elevation 6,900 ft. 

f10247. Bursum Formation, Torreon 15-minute quadrangle, Torrance 

County. Algal limestone nodules in pink and red shale on north 

bank of east-draining ravine; southwest corner NWl/4, sec. 29, 

T. 4 N., R. 5 E. at approximate elevation 6,960 ft. 

f10248. La Casa Member, Torreon 15-minute quadrangle, Torrance 

County. Basal part of limestone that caps upper part of southeasttrending nose; NW1/4SW1/4NW1/4, sec. 32 T. 4 N., R. 5 E.; about 

300 ft southeast of saddle. 

f10249. La Casa Member, Torreon 15-minute quadrangle, Torrance 

County. Shaley interbeds in limestone, at base of outcrop on north 

edge of arroyo channel; southwest corner NW1/4SW1/4, sec. 32, 

T. 4 N., R. 5 E. 

f10250. La Casa Member, Torreon 15-minute quadrangle, Torrance 

County. For locality, see f10249. Shaley interval2 ft above base 

of outcrop. 

f10251. La Casa Member, Torreon 15-minute quadrangle, Torrance 

County. For locality see f10249. From shaley intervalS ft above 

base of outcrop. 

f10252. La Casa Member, Torreon 15-minute quadrangle, Torrance 

County. For locality see f10249. From shaley interval17 ft above 

base of outcrop. 

f10253. Pine Shadow Member, Torreon 15-minute quadrangle, Valencia County. Top of 58-ft-thick, ridge-forming, yellowish-gray 

calcarenite with minor amounts of chert in upper 20 ft, 173 ft above 

base of member; type section of member. Section 1 (Myers and 

McKay, 1974); also fig. 2 (Myers, 1973). 
38 FUSULINID FORAMINIFERA, MANZANO MOUNTAINS, NEW MEXICO 

f10254. La Casa Member, Torreon 15-minute quadrangle, Valencia 

County. For locality, see f10253. Type section of member. From 

20 ft above base of 30-ft-thick, thinly bedded, light-olive-gray 

calcarenite that is 208 ft above base of member. 

f10255. La Casa Member, Scholle quadrangle, Valencia County. For 

locality see f10253. From 30-ft-thick, ledge-forming, light-olivegray calcarenite at top of member; collection from 5 ft above base 

of calcarenite. 

f10256. La Casa Member, Scholle quadrangle, Valencia County. For 

locality, see f10253. From 5 ft below top of member. 

f10257. Pine Shadow Member, Sedillo quadrangle, Bernalillo County. Calcareous claystone contains large, slender fusulinids in ditch 

and cuts on road to Cedro Peak; NW1/4, sec. 36, T. 10 N., R. 5 

E., approximate elevation 7,590 ft. 

f10258. Sol se Mete Member, Sedillo quadrangle, Bernalillo County. From top of lowermost limestone, 33 ft above base of member. 

Section 1 (Myers and McKay, 1976). 

f10259. Sol se Mete Member, Sedillo quadrangle, Bernalillo Coun· 

ty. From middle of 22-ft-thick, cherty, ledgeforming limestone that 

contains green micaceous siltstone partings; 55 ft below top of 

member. For locality, see f10258. 

f10260. Pine Shadow Member, Sedillo quadrangle, Bernalillo Coun· 

ty. From 7-ft-thick bed of yellowish-gray limestone and inter· 

bedded claystone that is 170ft above base of member. For locality, 

see f10258. 

f10261. Pine Shadow Member, Sedillo quadrangle, Bernalillo County. From 93 ft below top of member at top of 22-ft-thick sequence 

of argillaceous nodular limestone and calcareous claystone. For 

locality, see f10258. 

f10262. La Casa Member, Sedillo quadrangle, Bernalillo County. 

From white calcareous claystone at top of sequence of red beds, 

40 ft above base of member. For locality, see f10258. 

f10263. La Casa Member, Sedillo quadrangle, Bernalillo County. Base 

of 14ft limestone that caps Cedro Peak. For locality, see f10258. 

f10264. Sol se Mete Member, Tijeras quadrangle, Bernalillo Coun· 

ty. Fusulinid bed about 5 ft above basal sandstone of member. 

NW114NE114, sec. 33, T. 10 N., R. 5 E., elevation about 6,700 ft. 

f10265. Sol se Mete Member, Tijeras quadrangle, Bernalillo Coun· 

ty. Pale to grayish-orange, weathering medium-dark-gray cal· 

carenite about 5 ft above basal sandstone of member. West side 

of Corral Canyon, SE114NE1/4, sec. 28, T. 10 N., R. 5 E., approximate elevation 6,430 ft. 

f10266. Pine Shadow Member, Tijeras quadrangle, Bernalillo County. 

On south wall of abandoned segment of Ideal Cement Co. quarry, 

about 8 ft above floor of quarry. Interbedded, olive-brown, 

calcareous siltstone and light-gray, bioclastic calcarenite that lies 

near base of mostly medium-dark-gray, fine-grained calcarenite. 

NW114NW114, sec. 27, T. 10 N., R. 5 E. 

f10267. Sol se Mete Member, Tijeras quadrangle, Bernalillo Coun· 

ty. Rare fusulinids in light-olive-gray, weathers yellowish gray, 

silty limestone, NE114SW114NW1/4, sec. 34, T. 10 N., R. 5 E., 

at top of cut in primitive road where road reaches top of easttrending spur at elevation 6, 780 ft. 

f10268. Pine Shadow Member, Sedillo quadrangle, Bernalillo County. Ant hill in saddle on north side of primitive road, about 55 ft 

above base of member. North edge, northwest corner, NWl/4, sec. 

31, T. 10 N, R. 6 E. 

f10269. La Casa Member, Tijeras quadrangle, Bernalillo County. 

Rare nodules, dusky yellow-green and dark-gray limestone on 

covered slope 35 ft below Abo Formation. Rare fusulinids found 

in dark-gray nodules. SWl/4, sec. 23, T. 10 N., R. 5 E., 2,200 ft 

N. 34 o E. from section corner 6440 at approximate elevation 

6,410 ft. 

f10270. Bursum Formation, Scholle quadrangle, Socorro County. 

No~ular, lenticular limestone about 50ft above base of formation 

in ~hallow ravine where it crosses abandoned segment of old U.S. 

Highway 60; about 200 ft north of current U.S. Highway 60; 

SE114SW114, sec. 11, T. 2 N., R. 4 E., elevation approximately 

6,020 ft. 

f10271. Bursum Formation, Scholle quadrangle, Socorro County. 

About 12ft of brownish-gray, weathers light olive-gray, calcarenite; overlies greenish to yellowish-gray shale and red shale. 

Limestone is wavy bedded and has thin interbeds of calcareous 

shale. Sparse Schwagerina on bedding plane surfaces about 4 ft 

above base of limestone. In El Paso Natural Gas Co. pipeline cut, 

1,250 ft southeast of U.S. Highway 60, NE114SE1/4, sec. 24, T. 

2 N., R. 4 E. 

f10272. Pine Shadow Member, Sedillo quadrangle, Bernalillo County. About 60ft above base of member, 0.31 mi southwest of Cedro 

Peak in clearing for power lines; SW114NE1/4, sec. 36, T. 10 N., 

R. 5 E. 

f10273. La Casa Member, Torreon 15-minute quadrangle, Valencia 

County. This is the same locality as f10229. 

f10276. Pine Shadow Member, Mount Washington quadrangle, Bernalillo County. Reworked Desmoinesian fusulinids in 6-in.-thick 

bed of crinoidal·pebble conglomerate in roadbed; about 30 ft above 

base of member. SE114NW114, sec. 33, T. 9 N., R. 5 E., at approximate elevation 7,610 ft; about 50ft southwest of road junction 

to observation cabin on Mount Washington. Sandia Military Base. 

f10279. Pine Shadow Member, Tajique quadrangle, Torrance County. 

About 43 ft above base of member on east side of Terrero Canyon 

at approximate elevation 7,380 ft; SW114SW114SW114, sec. 28, 

T. 7 N., R. 6 E. 

REFERENCES CITED 

Armstrong, A. K., 1967, Biostratigraphy and carbonate facies of the 

Mississippian Arroyo Penasco Formation, northcentral New Mexico: New Mexico Bureau of Mines and Mineral Resources Memoir 

20, 80 p. 

Bachman, G. 0., and Myers, D. A., 1969, Geology of the Bear Peak 

area, Dona Ana County, New Mexico: U.S. Geological Survey 

Bulletin 1271-C., 46 p. 

Burma, B. H., 1942, Missourian Triticites of the northern midcontinent: Journal of Paleontology, v. 16, no. 6, p. 739-755, pl. 

118, 14 figs. 

Cassity, P. E., and Langenheim, R. L., 1966, Pennsylvanian and1lower 

Permian fusulinids of the Bird Spring Group from Arrow Canyon, 

Clark County, Nevada: Journal of Paleontology, v. 40, no. 4, 

p. 931-968, pls. 110-114, 6 figs. 

Dunbar, C. 0., and Condra, G. E., 1927, The Fusulinidae of the Penn· 

sylvanian System in Nebraska: Nebraska Geological Survey, 

Bulletin 2, 2d ser., 135 p., 15 pls., 13 figs. 

Dunbar, C. 0., and Henbest, L. G., 1942, Pennsylvanian Fusulinidae 

of Illinois: Illinois State Geological Survey Bulletin 67, 218 p., 

23 pis., 13 figs. 

Dunbar, C. 0., and Skinner, J. W., 1937, Permian Fusulinidae of 

Texas: Texas University Bulletin 3701, p. 517-825, pis. 42-81, 

figs. 89-97. 

Hatchell, W. 0., Blagbrough, J. W., and Hill, J. M., 1982, Stratigraphy 

and copper deposits of the Abo Formation, Abo Canyon area, central New Mexico, in Grambling, J. A., and Wells, S. G., eds., Albu· 

querque Country II: New Mexico Geological Society, Thirty-third 

Annual Field Conference, p. 249-260. 
FUSULINIDS FROM THE WILD COW AND BURSUM FORMATIONS 39 

Kauffman, A. E., and Roth, R. 1., 1966, Upper Pennsylvanian and 

lower Permian fusulinids from north-central Texas: Cushman 

Foundation Foraminiferal Research Special Publication 8, 49 p., 

11 pis. 

Kottlowski, F. E., and Stewart, W. J., 1970, The Wolfcampian Joyita 

uplift in central New Mexico: New Mexico Bureau of Mines and 

Mineral Resources Memoir 23, Part I, p. 1-31, figs. 1-13. 

Merchant, F. E., and Keroher, R. P., 1939, Some fusulinids from the 

Missouri Series of Kansas: Journal of Paleontology, v. 13, no. 6, 

p. 594-614, pl. 69; text figs. 1-4. 

Morris, H. T., Douglass, R. C., and Kopf, R. W., 1977, Stratigraphy 

and microfaunas of the Oquirrh Group in the southern East Tintic Mountains, Utah: U.S. Geological Survey Professional Paper 

1025, 22 p., 4 pis., 4 figs. 

Myers, D. A., 1960, Stratigraphic distribution of some Pennsylvanian 

Fusulinidae from Brown and Coleman Counties, Texas: U.S. 

Geological Survey Professional Paper 315-C, p. C37-C53, pls. 

15-24. 

__ 1966, Geology of the Tajique quadrangle, Torrance County, New 

Mexico: U.S. Geological Survey Geologic Quadrangle Map 

GQ-551. 

__ 1967 a, Geologic map of the Torreon quadrangle, Torrance Coun· 

ty, New Mexico: U.S. Geological Survey Geologic Quadrangle Map 

GQ-639. 

__ 1967b, Fusulinidae from the Graford Formation and Winchell 

Limestone, Canyon Group, Upper Pennsylvanian in Brown Coun· 

ty, Texas: U.S. Geological Survey Professional Paper 573-C, 

p. C1-C17, 2 pis. 

__ 1969, Geologic map of the Escabosa quadrangle, Bernalillo 

County, New Mexico: U.S. Geological Survey Geologic Quadrangle 

Map GQ-795. 

__ 1973, The upper Paleozoic Madera Group in the Manzano Mountains, New Mexico: U.S. Geological Survey Bulletin 1372-F, 

p. F1-F13. 

__ 1977, Geologic Map of the Scholle Quadrangle, Socorro, V alencia, and Torrance Countries, New Mexico: U.S. Geological Survey 

Geologic Quadrangle Map GQ-1412. 

Myers, D. A., and McKay, E. J., 1970, Geologic map of the Mount 

Washington quadrangle, Bernalillo and Valencia Counties, New 

Mexico: U.S. Geological Survey Geologic Quadrangle Map 

GQ-886. 

__ 1971, Geologic map of the Bosque Peak quadrangle, Torrance, 

Valencia, and Bernalillo Counties, New Mexico: U.S. Geological 

Survey Geologic Quadrangle Map GQ-948. 

__ 1972, Geologic map of the Capilla Peak quadrangle, Torrance 

and Valencia Counties, New Mexico: U.S. Geological Survey 

Geologic Quadrangle Map GQ-1008. 

__ 197 4, Geologic map of the southwest quarter of the Torreon 

15-minute quadrangle, Torrance and Valencia Counties, New Mexico: U.S. Geological Survey Miscellaneous Investigation Series 

Map I-820. 

__ 1976, Geologic map of the north end of the Manzano Mountains, Tijeras and Sedillo quadrangles, Bernalillo County, New 

Mexico: U.S. Geological Survey Miscellaneous Investigations 

Series Map I -968. 

Myers, D. A., McKay, E. J., and Sharps, J. A., 1981, Geologic 

map of the Becker quadrangle, Valencia and Socorro Counties, 

New Mexico: U.S. Geological Survey Geologic Quadrangle Map 

GQ-1556. 

Needham, C. E., 1937, Some New Mexico Fusulinidae: New Mexico 

Bureau of Mines and Mineral Resources Bulletin 14,88 p., 12 pis. 

Read, C. B., Wilpot, R. H., Andrews, D. A., Summerson, C. H., and 

Wood, G. H., 1944, Geologic map and stratigraphic sections of 

Permian and Pennsylvanian rocks of parts of San Miguel, Santa 

Fe, Sandoval, Bernalillo, Torrance, and Valencia Counties, northcentral New Mexico: U.S. Geological Survey Oil and Gas Investigations Preliminary Map 21. 

Rich, Mark, 1961, Stratigraphic section and fusulinids of the Bird 

Spring Formation near Lee Canyon, Clark County, Nevada: Journal of Paleontology v. 35, no. 6, p. 1159-1180. 

Ross, C. A., 1963, Standard Wolfcampian Series (Permian), Glass 

Mountains, Texas: Geological Society of America Memoir 88, 

205 p., 29 pls. 

__ 1965, Late Pennsylvanian Fusulinidae from the Gaptank For· 

mation, west Texas: Journal of Paleontology, v. 39, no. 6, 

p. 1151-1176, pis. 141-145, 8 figs. 

__ 1969, Middle and upper Pennsylvanian fusuliniceans, Gila 

Mountains, Arizona: Journal of Paleontology, v. 43, no. 6, 

p. 1405-1422, pls. 170-174, 2 figs. 

Ross, C. A., and Tyrrell, W. W., Jr., 1965, Pennsylvanian and Permian 

fusulinids from the Whetstone Mountains, southeast Arizona: 

Journal of Paleontology, v. 39, no. 4, p. 615-635, pls. 75-78, 6 figs. 

Sabins, F. F., and Ross, C. A., 1963, Late Pennsylvanian-early Permian fusulinids from southeast Arizona: Journal of Paleontology, 

v. 37, no. 2, p. 323-365, pis. 35-40, 4 figs. 

Say, T., 1823, In James, E., Account of an expedition from Pittsburg 

to the Rocky Mountains: Philadelphia, Pa., Carey and Lea, v. 1, 

p. 146-152. 

Stewart, W. J., 1970, Fusulinids of the Joyita Hills, Socorro County, 

Central New Mexico, in Kottlowski, F. E., and Stewart, W. J., 

1970, The Wolfcampian Joyita uplift in central New Mexico: New 

Mexico Bureau of Mines and Mineral Resources Memoir 23, p. 

35-82, 10 pls., fig. 14. 

Thompson, M. L., 1934, The fusulinids of the Des Moines series of 

Iowa: Iowa University Studies, Studies in Natural History, v. 16, 

no. 4, p. 277-322, pis. 20-23. 

__ 1936, Pennsylvanian fusulinids from Ohio: Journal of Paleontology, v. 10, no. 8, p. 673-683, pls. 90, 91. 

__ 1954, American Wolfcampian fusulinids: Kansas University 

Paleontological Contributions no. 4, Protozoa, art. 5, 226 p., 52 

pls., 14 figs. 

__ 1957, Northern mid-continent Missourian fusulinids: Journal 

of Paleontology, v. 31, no. 2, p. 289-328. 

Thompson, M. L., and Thomas, H. D., 1953, Fusulinids of the Casper 

Formation of Wyoming, Part II, Systematic paleontology of 

fusulinids from the Casper Formation: Geological Survey of Wyoming Bulletin 46, p. 15-56. 

Thompson, M. L., Verville, G. J., and Bissell, H. J., 1950, Pennsylvanian fusulinids of the south-central Wasatch Mountains, Utah: 

Journal of Paleontology, v. 24, no. 4, p. 430-465. 

Plates 1-13 follow 

Contact photographs of these plates are available, at 

cost, from the U.S. Geological Survey Photographic 

Library, Box 25046, Denver Federal Center, Denver, Colorado 80225 

,:, U.S. GOVERNMENT PRINTING OFFICE: 1988-573·047/66,077 REGION NO.8 
PLATE 1 

Fusulinids from the Sol se Mete and Pine Shadow Members of the Wild 

Cow Formation in the southern part of the Manzano Mountains. 

FIGURES 

[All unretouched photographs; X 10) 

For explanation and scale of graphic section see figure 3. 

1-5. USGS f10233, Triticites aff. T. cullomensis Dunbar and Condra, 1927. Axial 

sections, slides 15, 11, 14, 5, 10; USNM 375190, 375191, 375192, 375193, 

375194. 

6-9. USGS f10253, Triticites aff. T. cullomensis Dunbar and Condra, 1927. Axial 

sections, slides 8, 1, 12, 9; USNM 375195, 375196, 375197, 375198. 

10-13. USGS f10228, Triticites aff. T. cullomensis Dunbar and Condra, 1927. Axial 

sections, slides 3, 4, 1, 5; USNM 375199, 375200, 375201, 375202. 

14-17. USGS f10227, Triticites collus? Burma, 1942. Axial sections, slides 10, 2, 4, 

3; USNM 375203, 375204, 375205, 375206. 

18-21. USGS f10226, Kansanella sp. Axial sections, slides 8, 4, 3, 2; USNM 375207, 

375208, 375209, 375210. 

22-24. USGS f10245, Triticites cf. T. nebraskensis Thompson, 1934. Axial sections, 

slides 6, 15, 8; USNM 375211, 375212, 375213. 

40 

[Chap. B] 
U . . GEOLOG ICAL SURVEY 

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PLATE 2 

Fusulinids from the Sol se Mete Member of the Wild Cow Formation in 

the central part of the Manzano Mountains. 

[All unretouched photographs; X 10) 

For explanation and scale of graphic section, see figure 3. 

FIGURES 1-3. USGS fl0202, Triticites cf. T. ohioensis Thompson, 1936. Axial sections, slides 

2, 4, 3; USNM 375214, 375215, 375216. 

4-6. USGS fl0209, Triticites cf. T. ohioensis Thompson, 1936; Axial sections, slides 

7, 5, 3; USNM 375217, 375218, 375219. 

7-9. USGS fl0224, Triticites cf T. ohioensis Thompson, 1936. Axial sections, slides 

3, 10, 4; USNM 375220, 375221, 375222. 

10-12. USGS fl0208, Triticites cf. T celebroides Ross, 1965. Axial sections, slides 3, 

2, 1; USNM 375223, 375224, 375225. 

13-15. USGS fl0207, Triticites cf. T. nebraskensis Thompson, 1934. Axial sections, slides 

1, 3, 8; USNM 375226, 375227, 375228. 

16-18. USGS fl0210, Triticites nebraskensis Thompson, 1934. Axial sections, slides 3, 

4, 2; USNM 375229, 375230, 375231. 

42 

[Chap. B) 
U.S. GEOLOGICAL SURVEY 

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16 
PLATE 3 

Fusulinids from the Sol se Mete and Pine Shadow Members of the Wild 

Cow Formation in the northern part of the Manzano Mountains. 

[All unretouched photographs; X 10] 

For explanation and scale of graphic section, see figure 3. 

FIGURES 1-3. USGS f10272, Triticites aff. T. primarius Burma, 1942. Axial sections, slides 

1, 4, 3; USNM 375232, 375233, 375234. 

4-6. USGS f10268, Triticites aff. T. asperoides Ross, 1965. Axial sections, slides 1, 

8, 6; USNM 375235, 375236, 375237. 

7-10. USGS f10241, Axial sections, slides 3, 1, 6, 2; USNM 375238, 375239, 375240, 

375241. 

11-14. USGS f10259, Triticites ohioensis Thompson, 1936. Axial sections, slides 7, 1, 

5, 4; USNM 375242, 375243, 375244, 375245. 

15-17. USGS f10264, Triticites nebraskensis Thompson, 1934. Axial sections, slides 

4, 2, 1; USNM 375246, 375247, 375248. 

18-20. USGS f10265, Triticites nebraskensis Thompson, 1934. Axial sections, slides 

2, 4, 1; USNM 375249, 375250, 375251. 

21-25. USGS f10258, Triticites nebraskensis Thompson, 1934. Axial sections, slides 

4, 2, 3, 5, 8; USNM 375252, 375253, 375254, 375255, 375256. 

44 

[Chap. B) 
U.S. GEOLOG ICAL SURVEY 

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4 

6 

8 

7 

10 ' 

1 2 

~ 

TRIT!CITES FROM NORTHER:--.J MANZA:--.JO MOUNTAIJ\'S 
PLATE 4 

Fusulinids from the Pine Shadow Member of the Wild Cow Formation in 

the central Manzano Mountains. 

[All unretouched photographs; X 10 unless otherwise indicated) 

For explanation and scale of graphic section see figure 3. 

FIGURES 1-4. USGS f10214, Triticites aff. T. cullomensis Dunbar and Condra, 1927. Axial sections, slides 4, 9, 1, 6; USNM 375257, 375258, 375259, 375260. 

5-7. USGS f10205, Triticites secalicus (Say), 1823. Axial sections, slides 3, 4, 1; USNM 

375261, 375262, 375263. 

8-11. USGS f10203, Triticites secalicus (Say), 1823. Axial sections, slides 9, 13, 8, 15; 

USNM 375_264, 375265, 375266, 375267. 

12-14. USGS f10206, Triticites sp. Axial sections, slides 1, 2, 5; USNM 375268,375269, 

375270. 

15-16. USGS f10201, Triticites sp. Axial sections, slides 11, 5; USNM 375271, 375272. 

17. USGS f10279, Millerella? sp. ( X 100). Axial section, slide 1; USNM 375273. 

18-20. USGS f10211, Triticites gilaensis? Ross, 1969. Axial sections, slides 8, 9, 10; 

USNM 375274, 375275, 375276. 

46 

[Chap. B) 
PROFESSIONAL PAPER 144oB PLATE 4 
PLATE 5 

Fusulinids from the Pine Shadow and La Casa Members of the Wild Cow 

Formation in the central Manzano Mountains. 

[All unretouched photographs; X 10 unless otherwise indicated] 

For explanation and scale of graphic section, see figure 3. 

FIGURES 1, 2. USGS fl0242, Oketaella sp. ( X 50). Axial sections, slides 5, 2; USNM 395849, 

375277. 

3, 4. USGS fl0219, Triticites aff. T. beedei Dunbar and Condra, 1927. Axial sections, 

slides 1, 3; USNM 375278, 375279. . 

5, 6, 8. USGS fl0212, Triticites aff. T. nealensis Ross, 1965. Axial sections, slides 1, 5, 

4; USNM 375280, 375281, 375282. 

7. USGS fl0212, Millerella? sp. ( X 100). Axial section, slide 9; USNM 375283. 

9, 11. USGS fl0213, Triticites aff. T. confertoides Ross, 1965. Axial sections, slides 

5, 2; USNM 375284, 375285. 

10. USGS fl0213, Millerella sp. ( X 100). Axial section, slide 6; USNM 375286. 

12-14. USGS fl0218, Triticites cf. T. beedei Dunbar and Condra, 1927. Axial sections, 

slides 1, 5, 4; USNM 375287, 375288, 375289. 

15-17. USGS fl0243, Triticites aff. T. confertoides Ross, 1965. Axial sections, slides 

3, 2, 4; USNM 375290, 375291, 375292. 

18-20. USGS fl0204, Triticites aff. T. acutuloides Ross, 1965. Axial sections, slides 10, 

7, 3; USNM 375293, 373294, 375295. 

48 

[Chap. B) 
U.S. GEOLOGICAL SURVEY r 
PLATE 6 

Fusulinids from the middle part of the Pine Shadow Member of the 

Wild Cow Formation in the northern Manzano Mountains. 

[All unretouched photographs; X 10, unless otherwise indicated) 

For explanation and scale of graphic section, see figure 3. 

FIGURES 1-3. USGS f10257, Triticites sp. Axial sections, slides 4, 1, 3; USNM 375296, 375297, 

375298. 

4-8. USGS f10266, Dunbarinella aff. D. wildei Kauffman and Roth, 1966. Axial sections, slides 4, 26, 11, 10, 3; USNM 375299, 375300, 375301, 375302, 375303. 

9-11. USGS f10266, Triticites bensonensis Ross and Tyrrell, 1965. Axial sections, slides 

14, 1, 8; USNM 375304, 375305, 375306. 

12-15. USGS f10260, Oketaella? sp. ( X 50). Axial sections, slides 6, 5, 11, 10; USNM 

375307, 375308, 375309, 375310. 

50 

[Chap. B] 
U.S. GEOLOGICAL SURVEY 

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PROFESSIOt\Al. PAPER l·WiB 

TRJ1'1CJTES, DUNBARJNELLA, AND OKETAELLA? FROM 

NORTHERN MANZA 0 MOUNTAINS 

PLATE (i 
PLATE 7 

Fusulinids from the Pine Shadow and La Casa Members of the Wild Cow 

Formation in the northern Manzano Mountains. 

[All unretouched photographs; X 10 unless otherwise indicated) 

For explanation and scale of graphic section, see figure 3. 

FIGURES 1-3. USGS f10239, Triticites sp. Axial sections, slides 4, 1, 2; USNM 375311, 375312, 

375313. 

4-6. USGS f10238, Triticites cf. T. cuchilloensis Needham, 1937. Axial sections, slides 

5, 4, 2; USNM 375314, 373315, 373316. 

7. USGS f10263, Ozawainella? sp. ( X 100). Tangential section, slide 9; USNM 

375317. 

8. USGS f10263, Dunbarinella sp. Axial section, slide 8; USNM 375318. 

9-11. USGS f10263, Triticites cf. T. beedei Dunbar and Condra, 1927. Axial sections, 

slides 7, 5, 1; USNM 375319, 375320, 375321. 

12, 13. USGS f10262, Dunbarinella sp. Axial sections, slides 15, 18; USNM 375322, 

375323. 

14-16. USGS f10262, Triticites cf. T. beedei Dunbar and Condra, 1927. Axial sections, 

slides 9, 13, 1; USNM 375324, 375325, 375326. 

17-19. USGS f10237, Triticites aff. T. confertoides Ross, 1965. Axial sections, slides 

4, 6, 1; USNM 375327, 375328, 375329. 

20-22. USGS f10261, Triticites cf. T. turgidus Dunbar and Henbest, 1942. Axial sections, slides 5, 11, 9; USNM 375330, 375331, 375332. 

52 

[Chap. B) 
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PROFESS IONAL !'API;:!\ I44fiR PLATE 7 

TRJTJC'ITES, OZA WAINELLA?. A D DUNBARINELLA FROM 

NORTHERN MANZANO MOU TAINS 
PLATE 8 

Fusulinids from the lower part of the La Casa Member of the Wild Cow 

Formation in the southern Manzano Mountains. 

[All unretouched photographs; X 10) 

For explanation and scale of graphic section, see figure 3. 

FIGURES 1-4. USGS f10249, Triticites aff. T. beedei Dunbar and Condra, 1927. Axial sections, 

slides 6, 7, 1, 4; USNM 375333, 375334, 375335, 375336. 

5-8. USGS f10235, Triticites cf. T. callosus Dunbar and Henbest, 1942. Axial sections, slides 2, 3, 1, 5; USNM 375337, 375338, 375339, 375340. 

9-11. USGS f10230, Triticites aff. T. birdspringensis Cassity and Langenheim, 1966. 

Axial sections, slides 5, 6, 1; USNM 375341, 375342, 375343. 

12-14. USGS f10229, Triticites cf. T. beedei Dunbar and Condra, 1927. Axial sections, 

slides 4, 1, 2; USNM 375344, 375345, 375346. 

15-18. USGS f10273, Triticites cf. T. beedei Dunbar and Condra, 1927. Axial sections, 

slides 2, 3, 4, 10; USNM 375347, 375348, 375349, 375350. 

19-21. USGS f10234, Triticites cf. T. arcuosoides Ross, 1969. Axial sections, slides 5, 

3, 1; USNM 375351, 375352, 375353. 

54 

[Chap. B] 
U.S. GEOLOG ICAL SURVEY 

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TRITICITES FROM SOUTHERN MANZANO MOUNTAINS 
PLATE 9 

Fusulinids from the middle part of the La Casa Member of the Wild 

Cow Formation, southern Manzano Mountains. 

[All unretouched photographs; X 10) 

For explanation and scale of graphic section, see figure 3. 

FIGURES 1, 2, 5. USGS f10246, Triticites aff. T. pinguis Dunbar and Skinner, 1937. Axial sections, slides 8, 4, 6; USNM 375354, 375355, 375356. 

3, 4. USGS f10246, Leptotriticites sp. Axial sections, slides 11, 9; USNM 375357, 

375358. 

6-8. USGS f10231, Triticites cf. T. pinguis Dunbar and Skinner, 1937. Axial sections, 

slides 5, 1, 2; USNM 375359, 375360, 375361. 

9-11. USGS f10252, Triticites sp. Axial sections D3, D5, D6; USNM 375362, 375363, 

375364. 

12-14. USGS f10251, Triticites cf. T. ventricosus var. sacramentoensis Needham, 1937. 

Axial sections, slides C7, C3, C5; USNM 375365, 375366, 375367. 

15-17. USGS f10250, Triticites cf. T. ventricosus var. sacramentoensis Needham, 1937. 

Axial sections, slides B4, B5, BlO; USNM 375368, 375369, 375370. 

56 

[Chap. B] 
U.S. GEOLOGICAL SU RVEY 

TRITICITES AND LEPTOTRITICITES FROM SOUTHERN MANZANO MOUNTAINS 
PLATE 10 

Fusulinids from the upper part of the La Casa Member of the Wild 

Cow Formation in the southern Manzano Mountains. 

[All unretouched photographs; X 10, unless otherwise indicated] 

For explanation and scale of graphic section, see figure 3. 

FIGURES 1, 2. USGS f10244, Schubertella sp. ( X 100). Axial sections, slides 14b, 13; USNM 

375371, 375372. 

3. USGS f10244, Millerella? sp. ( X 100). Axial sections, slide 14a; USNM 375373. 

4, 5. USGS f10244, Triticites pinguis Dunbar and Skinner, 1937. Axial sections, slides 

5, 4; USNM 375374, 375375. 

6. USGS f10244, Triticites cf. T. creekensis Thompson, 1954. Axial section, slide 

1, USNM 375376. 

7, 8. USGS f10256, Triticites cf. T. creekensis Thompson, 1954. Axial sections, slides 

3, 2; USNM 375377, 375378. 

9-12. USGS f10255, Triticites sp. Axial sections, slides 2, 1, 6, 7; USNM 375379,375380, 

375381, 375382. 

13-15. USGS f10236, Triticites cf. T. creekensis Thompson, 1954. Axial sections, slides 

5, 6, 7; USNM 375383, 375384, 375385. 

16-19. USGS f10254, Triticites aff. T. beedei Dunbar and Condra, 1927. Axial sections, 

slides 7, 1, 6, 5; USNM 375386, 375387, 375388, 375389. 

58 

[Chap. B] 
U.S. GEOLOGICAL SURVEY 

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PLATE 11 

Fusulinids from the upper part of the La Casa member of the Wild 

Cow Formation, central Manzano Mountains. 

[All unretouched photographs; X 10] 

For explanation and scale of graphic section, see figure 3. 

FIGURES 1-3. USGS f10223, Triticites sp. Axial sections, slides 6, 5, 8; USNM 375390,375391, 

375392. 

4. USGS f10223, Leptotriticites sp. Axial section, slide 7; USNM 375393. 

5. USGS f10223, Triticites sp. Axial section, slide 4; USNM 375394. 

6-8. USGS f10222, Triticites cf. T. whetstonensis Ross and Tyrrell, 1965. Axial sections, slides 4, 2, 3; USNM 375395, 375396, 375397. 

9, 10. USGS f10221, Triticites cf. T. whetstonensis Ross and Tyrrell, 1965. Axial sections, slides 4, 3; USNM 375398, 375399. 

11-16. USGS f10217, Triticites aff. T. whetstonensis Ross and Tyrrell, 1965. Axial sections, slides 7, 1, 8, 2, 3, 10; USNM 375400, 375401, 375402, 375403, 375404, 

375405. 

17-19. USGS f10220, Triticites cf. T. plummeri Dunbar and Condra, 1927. Axial sections, slides 4, 1, 3; USNM 375406, 375407, 375408. 

60 

[Chap. B] 
PROFESSIO!\:AL PAPER 1446B PLATE 11 

D LEPTOTRITICITES FROM CENTRAL MANZANO MOUNTAI 
PLATE 12 

Fusulinids from the La Casa Member of the Wild 

Cow Formation in the northern Manzano Mountains. 

[All unretouched photographs; X 10, unless otherwise indicated] 

For explanation and scale of graphic section, see figure 3. 

FIGURES 1, 2. USGS f10216, Triticites aff. T. rhodesi Needham, 1937. Axial sections, slides 

4, 1; USNM 375409, 375410. 

3, 5. USGS fl0215, Triticites aff. T. plummeri Dunbar and Condra, 1927. Axial sections, slides 3, 1; USNM 375411, 375412. 

4. USGS fl0215, Dunbarinella, sp. Axial section, slide 5; USNM 375413. 

6-8. USGS f10232, Triticites aff. T. plummeri Dunbar and Condra, 1927. Axial sections, slides 3, 1, 6; USNM 375414, 375415, 375416. 

9. USGS fl0225, Ozawainella sp. ( X 100). Axial section, slide 6; USNM 375417. 

10, 11. USGS fl0225, Triticites aff. T. cameratoides Ross, 1965. Axial sections, slides 

1, 2; USNM 375418, 375419. 

12-15. USGS f10240, Triticites sp. Axial sections, slides 7, 6, 4, 1; USNM 375420,375421, 

375422, 375423. 

62 

[Chap. B] 
L'.S. GEOLOG I 

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PROFE SIONAL PAPER 144613 

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13 14 

TRITICITES , DUNBAR/NELLA , AND OZAWA/NELLA FROM 

NORTHERN MANZANO MOUNTAINS 

15 

PLATE 12 
PLATE 13 

Fusulinids from the Bursum Formation, southern Manzano Mountains, 

and miscellaneous fusulinids, Manzano Mountains. 

[All unretouched photographs; X 10] 

FIGURES 1-12. Fusulinids from the Bursum Formation. 

1, 2. USGS f10271, Schwagerina pinosensis Thompson, 1954. Axial sections, slides 7, 6; USNM 375424, 375425. 

3-5. USGS f10247, Triticites aff. T. creekensis Thompson, 1954. Axial 

sections, slides 4, 3, 5; USNM 375426, 375427, 375428. 

6, 8. USGS f10248, Leptotriticites sp. Axial sections, slides 3, 5; USNM 

375429, 375430. 

7. USGS f10248, Triticites aff. T. creekensis Thompson, 1954. Axial 

section, slide 10; USNM 375431. 

9-12. USGS f10270, Triticites creekensis Thompson, 1954. Axial sections, 

slides 21, 10, 15, 8; USNM 375432, 375433, 375434, 375435. 

13-18. Fusulinids from the La Casa Member of the Wild Cow Formation. 

13-18. USGS f10269, Triticites cf. T. nealensis Ross, 1965. Axial sections, slides 2, 3, 

5, 7, 11, 4; USNM 375436, 375437, 375438, 375439, 375440, 375441. 

19-22. Reworked fusulinids in the Pine Shadow Member of the Wild Cow Formation. 

19-22. USGS f10276, Beedeina sp. Axial sections, slides 5, 1, 3, 4; USNM 375442,375443, 

375476, 375477. Late Desmoinesian fusulinids that have been reworked into 

a crinoid-pellet conglomerate in the Pine Shadow Member. 

64 

[Chap. B] 
U.S. GEOLOG ICAL SURVEY PROFESS IONAL PAPER 144GB PLATE1:3 

3 

,5 

13 

18 

20 

22 

19 

21 

SCHWAGERINA, TRITICITES , LEPTOTRITIC!TES, AND BEEDEINA FROM MANZANO MOUNTAINS