fJ it,,~±~~~~%·;c..tTransactions and Proceedingsof thePalaeontological Society of JapannB ;fl] 12 ~1 93 7

No. S(:t1!!.'i1JJ&~tii.1:. ~ 44 'tti 1fi 526-528 ~'l :tUtl )[Reprinted from J our. Geol. Soc. J apan, Vol. 44. No. 526-528.]

P alaeontological Society of J apan

40.

13

::k CONTENTS¥R

15 Tl'ansactions:Mi mburo SlIIMAKURA, A P etrified Wood dr edged f rom the
Bot t om off the Coast of Tobisima, Yamagata-ken. (PublishedJ uly 20) . . .. . .. . . . . ... .... .. .. . ... . ... . . , ... ' . . . . .. . . . . .. .
II I% I',w.m fih NIC9 nu:nS;;6> t>l:i:l td;t1t:5 (jil'd~) ( 7. . . . . . . . . , ' . , ; .. . .. , . , , . , , . . . . , .. . "98

n 20 mJjMO . . ....... .

. . . . .. . . ' ., .... r."h :f;f E :::=. UII 103

41, Kinji K ANEHARA, Pliocene Shells from t he Teshio Oil Field,
Hokkaido. (Published July 20)· ... . . , , . ....... , . . . . . . . . . . . .. 104
xrL\~ i1b EFlEld!itff!r~9JJt1t:5 Cfil'd~) ( 7n 20 r:1 ~~) """~ lfii

;/!:)

:::

109

42. Curt TEICHERT, Polydesmia cnnaliculata LORENZ, an Ordovician
Actinoceroid Cephalopod. (Published July 20) .. . . . . .. . . . . .. 110~~~B*tl 7 ? T / -t: tJ -1 ~. iii'UElIii'iG') 1 ;fill Polyclesrnia canaliculata L ORENZ( jil'd~)(7 fJ 20 r:1 ~~) . . , ............ Curt Teichert [jil'd~/J '*.r!Q-] 113

43. K inji KA NEHARA, On Some Neogene.Shells f rom J apan, (P art
I). (Published August 20) , , .. ........... . .. , .. . . . .. . . , . , . . . 114;;j(!flljifr1fi'::::$tlJl1t :5 (1ti 1 ;m)(~Iii~) (8 H 20 r:r ~~) ,,~

mr

;/!:)

:::

119

44. Kiyosi A SANo, .A P liocene Species of 1ElIJh.jrl~u1n from J apan.
(Published August 20) .. " .... . . , . .... . ..... ,.. . . . . .. .. . .. 120
1=1;;j(.iliZ!iit;l1fiJl: E lpli'icl'iwn 'I,) 1 ff!rlill ( j~~~ ) ( 8 YJ 20 r:r illt~) . .. ... . .. .

" """" "" """ "" " ". """ .. " """"" 71i!

ill}

45. Ki nji KANEHARA, Neogene Sh ells f r om the Etaibets Oil F ield,
Hokkaido. (Published August 20) . . , . . , .. . ....... . . .. , . .. , . 124~t1f~itl;;gt't Jjij ¥rtl EFlG')Jl 1t :5 Cfi'i:j~) ( 8JJ 20 r:rillt~),. ,. ~

lfii

;/!;j

::: 129

46 . H. Y. MA, Ogygitoides yabei, a New Sp ecies of Tl'ilobite fromthe Tsinan Limestone of Shan tung, China. (Published Sep te mber 20) · . . , .. . . . . .... , . . . ' ........ . .. , . . . . . . . .. . ... . , . .... 130
111*

r it'lfiij:5tK~ J ilt :::=. *~G') 1 ;l1f*ill Ogygil oicles yabei (jil'd~)

20 r:r illt~O"" """",, ",, .... ,, "" " " " " " " " .~~

;fir

(9 H
r.l~

132

47. Misaburo SlIIMAKURA, J ur assic Erect Stumps uneal,thed a tt he Court of the 77 t h Regiment of Heizyo, Korea. (Published
September 20) . . . , . .. .. ..... . . . . . , . . , . " . . . . . , .. . . . . . , . . . .. 134
21;,j)'~l:i't 77lNJ~l1$<fl'lEJ: ~ !i!.t'lm ;! ;f'Lt:: U=7$i:! G')1.J::. :5fYtl,[~ Cjil'd~) ( 9fJ 20

f:1!i!.t~) "" " " " " """" " .. " "', ,, """ . " " fih ~ E .:::: UII 136~r.

~

Proceedin gs .. ' . .. .. . ... . ,. .

137

·("l

B *1i"~~~~~~Il*('J'raJ1sactions of' the ralaeontological Society of .Japan)

40. A Petrilied Wood dredged from the.Bo-ttom off the Coast of Tobisima,
Yamagata-ken.
By

Misaburo SHIMAKURA(Contribution fro m the Institute of Geology and Palaeontology,
T6boku Impe rial Univ e rsity, Sendai, Japan; read Feb.
29 th ., ] 936; receiyed Apri I 28 tb. , 1937")

Early in 1935, Professor H. NUNO of the Imperial Fisheries
In stitute, Tokyo, sent to the writer a fossil wood dr edged fromsea-bottom off the coast of Tobishima,
Text-fig. 1.
Yamagata-ken, at a depth of 10 meters.
The specimen is a fragm.ent of black petri7
fied wood, 12 cm. long and 6.5 x 3.5 cui.
broad; being very wel1 preserved, it i sworth deEcribing (Text-:6g. 1) .

Structure'l'1·CL?ls'Ve1"Se sec tion: - Growth rings relatively wide, boundaries indistinct, transition from early to late ,"yood very gradual.
VeEsels even ly distributed, 2- 5 pel' sqllaremm., gradually diminish in size toward late wood, arranged singly
or in groups; single pores circular, oval, or elliptical in outline,
120-260f1- x 110-220f1- in diameters, common cel1-walls 3- 5f1- thick;grouped pores 2-3, rarely 4, connected radially in direction. Trach eids not clear. "Wood fibres abundant, thi.ck-walled, althoughsecondary layer of most :6bres disappeared. "'IV ood parenchyma
metatracheal, 2-3 cells wide, rarely paratracheal or terminal,. crystal-bearing idioblasts occur in metatrach eal parenchyma bands,-.. -( 98 ) . -.

lVI, SHIMAKURA

698

Rays uniseriate and polys61'iate; -horizontal ~al Js pitted; lateral
waHs irregulai:'ly thickened : (pt 21 (9), figs. 1-2).
Rctdial section: -Perforation of vessels simple, end walls horizontal or slightly slanting, latel.'al walls covered with border edpits where two vessels are in contact; pits circular 01' oval, alternate, sometimes partly opposite, with small, oval 01' oblong apertures. Tyloses occasionally present in early wood ves 'els. Woodfibres librifor11J., lateral walls app~rently smooth, with small, circular pits, often separated. 'Wood parenchyma short, horizon tal walls
smooth and t hin, somet imes slightly thickened, idioblastic large
cells contain rhomboidal cryst.alE', Rays hetero o'enous : marginal
cells upright, one or more rows, ,ometimes transformed into large
crystal-bearing cells and connected with wood parenchyma in. vertical rows ; becumbcnt cells medial, abundant ; horizontal andtangential walls of ray cells much thickened, lateral wall s with many..:mall, circular, half-border("elText,fig. 2.
pit-pairs in field, ' crossing
vessels (PI. 21 (9), fig. 3).
- - .7k ~u..cvm.M1.
Tangentictl section: -- :J.ir.u.J~
so
Bordel'ed pits on lat~ral walls---- .1~ Ul'il.&vr<.a.
- ' -:J~ ~a.
of vessels small, circular, and.... M'ocnA.f«4 t41civ<
alternate. , ;Vooel fibr es abun_ .. _ .. , JI?/V/,w,udia., Gzlat'fU'
dant. Rays h eterogenous, 1~- J.~"QM r"'~B, mostly 2-5, cells wide, 2- - /feMuutd-.a.pdrata
50 , cells high , 17-24 pel'square mm.; marginal npright cells oval or somewhat
irregular in outline, rarely
containing crystals; becumb ent cells small; circular in30
o ntline, all tangential wallsof ray cells pitted (PI. 21
20(9), fig. 4) .

Affinity10

It is clear that this isa dicotyledonous wood. The
arrangement · of vessels m- '-number of connection of vessels( 99)-

A Pet,I'ifiei ,Voo:l dl'eclgoi l fl'Ol1l the Bottom
Text-fig . .3.
this woo'd is generally- 7k4~nwn
diffuse, but sometimes
70.7..d:aJ~tends to be radial. Use- '7~ w-tj,{l<a,.na. .
fn} criterion for identi7-<CaJ~
fication of diffuse por- 10,0..l/x:M/w..J ,;, ~bus woods is . the num7<iM?Wr~~"
ber of vessels· p er square&~~r"Ld1/MlA- - !r)t.Ar~.tc.A::.L"('
mm., although it variesv\,ith age, with position : ~o'1
in tree, and also in the ."c.orre1ation 'with vary- r:." 30
ilig external condition ";small nuwber of vesself', as 2-5 on an average, is found ' in, thowood'S of J~£glans, :Vi,cus, 10
A?,top cL1'P~tS, 'J.11yristica"
I-Ie?'nandia, and Dio'I
10
spi?'os; for oXalupie.
Width of rays ( Number of .cells)
The arrangem eut of wood parenchyma is also an important chat'actel'; the alternation of m.otatracheal bands moi'e than 2 cells wide
is .common in the woods of Fic~~s,C?'e tae?'ispen£rn, and Syrnphonis,
etc. Tyloses are presont in the woods of Moraceae, Fagaceae, L eguminotaC', and some other s.
'

..

<T

1/

In the proportion of grouped vessels to sing le . ones,· and in
the mode of connection of vessels, the present speci:uen is moresimilar to Fic~ts t hf.t!l to alJyother genera (Text-fig. 2). Furthermore, heterogenous rays of 1-6 cells wide distinguish es the present
wood from those of Juglans, lJ!IY?'istica, H ernandia and Diospi?'Q8(Text-fig. 3). According to JONES, Fiws"type of timber is characterized 'b y numerous crystals in vertical: parenchyma and rayceils al~d pronounc·od · swelling of rays iil . parenchymatous zones,
and differs from Ste1:90Sp e?'Mh with little or no swelling of rays
on entering the pareJichymatou~ . zones. By these characteristics,
the . pres~n~t specimen is regarded as belonging to the so-qalled,i Ficus-type" wood. .
'.
"Various fossil wQods :showin'g the Fiws-type of :s trl1ct)lre havebeen r eferred to Ficoxylon . . ~ANcRoFT, pointed out that :the 'FiwsA-( 100 ) -

700

M. SElIMA KURA

type of structure occurs in the woods of 1425 species in 18 generaand 12 familie:;:, and stated, "the 'genus' Picoxylon lll.mst be accepted with reserve as indicating that the fossils bearing it possessa particular type of structure rather than that they have a definite
systematic relationship.--In the description of fosl:iil ""ood:;:, theold generic names of SCHLEIDEN--D1'yoxylon-- should be used
where the affinities of the specimen are uncertain--", Ficoxylon ' however, is a form-genus for fossil Ficus-type
wood::;, whatever their systematic positioD. may bE', showing thealternative zoning of woo::1. parenchyma and fibreE, a special arrangement of vesself', and a moderate width and h eight of h eterogenous rayf', etc.; therefore, the writer rather prefer. ' to ' apply
Ficoxylon than DTyoxylon for the present wood.
Ficus-type fossil wood ..' have been described under the nameof Fic1LS or Ficoxylon, for example, Ficoxylon c1'etaceurJi SCHENK
from the Oligocene of Egypt, F. t?'opiwm, (SCHLEIDEN)FELIX fromthe T ertiary of Bohemia, ]I'. helictoxyloid es PLATEN from the MioPliocene of California, F. zi1'lceli HOFMANN from unknowri. locality
and horizon, and Fic1Ls callosa WILLYDE"OWY from the Pleistoceneof J ava. They are . all compared with living spE'cies of Fic'Us.
The present specimen differing from these Ficus-type woods inthe width of wood parenchyma, is r egarded better to be describedunder a new name: the' diagnosis follows.
F icoxylon K AISER 1880
Ficoxylon ang1LstipMenc hymato8urn SHIMARURA, n. sp.
Diagnosis :-Dicotyledonous wood of Ficus-t ype. Growth rings present, usually indistinct. Vessels diffllse, single 01" in groups of 2-4 pores,
l'adial in dil"ection, 2-5 per squal"e mm .; single poras 120-260 t.t X llO-220'
t.t broad, cir cular or oval; grouped pores· in close contact; perforation
simple, lateral walls when in contact, covered with small, closely arranged
bordered IJits . Fibres cO~lstitute fundamental paTts of wood, libriform.
often septated, lateral walls with small pits .. Wood parenchyma meta~
tracheal, 2- 3 cells wide, lateral and horizontal walls ir r egula rly thickened,.
often large idioblastic cells containin g rhomboidal crysta:s. Rays heterogenous, 1-6 cells wide, 1-50 cells high; upright cells marginal, b ecumbent
cells medial, horizontal walls thin, lateral walls with small p its in fields
crossing vessels.
OccwlTcnce :-The sea bottom off the coast of 'l'obisima, yamagataken. (Reg. No. 57693). Probably Tert :ary in age.
- . (101) -' -

A Pet.rified Wood dredged .f,:om t.be Bottom

In conclusion, tho writer wish es to cxpreEs very grateful thanks
to Prof. H. Y,ABE for his kind guidallce ; to Mr. K. HATAI for corr ecting the present paper before publication; to Prof. 1-I. NJINO
for sUbm.itting the material to . his study.

Literature
BANCROFT, H .: On t he I dellt,ification of Isolated Timber Specimens, 1ritb E :;pecial
Refrence to Fossil Woods. AnD. Bot., XLVI. 353-056, 19 :~2.
Some Fossil DicotylednnrlUs. Woods from Mount Eigon, East 4,frica
II. Amer. J ourn. Bot .. X X II, 279-290, 1935.
EDWARDS, 'V. N.: Fossilium CatalogDs. II. Plant:l.e, Pars 17, Dicotyl edones (Ligna).
Berlin, ]931.
FUJIOKA, M. & C. KANESEII.: Identification of the Japanese Hardwoods (in Japanese). Journ. Soc. Forestry, Tokyo, IX, No. 10, 6-21, 1927
FELIX, J.: Untersucbungen libel' fossile Holzer. Ztsrhl'. deut. Geo1. Ges., XXXV,
59-91. 1883.
JONES, IV. S. : Timbers: Theil' StrucLDre an~l Identification. Oxford, 1924.
KAISER, P.: Ji"icoxylon bolwm'icum, ein neu es fossil es Laubbolz. Ztscb,·. f. Gesamt.
Naturw., (3). V, 1880 (Not seen).
KANmlIRA, R.: Anatomical Characters awl Identification of Formosan Woods. Talbolm, 1921.
- - - : Identification of Philippine , .\Toods by Anatomical Charac ters. Taibolm, 1924.
: Anatomical Cha racters and Identification of the Woocls of J a panese
Empire (in Japanese). Taihoku, I D26.
KANESRI, C.: Die Untersuchung tiber die Gl'uudlage del' Holzidentifizierungs met hode. III. Mitteilung, Das Ho]zparenchyrn llnd seine Verteilllng und
Anol'dnung in den Sekundiil'eu I-Io lzern. J omn. Soc. Fores tr.?" T okyo, XII,
No. 10, 1930.
KAWAI, S.: Die UntersDchungsmerkrnale del' wichtigsten in J apan wachsenden
Laubholzer. Bnll. Coil. Agdc . Imp. Univ. Tokyo, IV, No.2, 97-152,1900.
SCHENK, A.: Fossile Holzer. (Beitrii.g e zur Geol. u. Paleont. del' Libyschen IVliste).
Palaeontogr., XXX, 2, Abt. I, 1883.

Ex})lana tion of Plate 21 (9).
Pico:r;ylon angust'ipa?'enchymatosum SHIMAKURA, n. sp.

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.

Transverse se'!tion of the wood. x 15.
The same section of "a pa rt of the wood. x 40.
Radial longitudinal section of the wood. x 4.0.
Tangential longituclinal seci;ion of t,he wood. x 40.

-(102) -702

M , SUIMAKUltA1935 6FG') ;f;1J<!'.> , Ill')~Vbf.1rnlibjql 10m (1.J 7Fj,f!'f.iJ>b I," v,;,- 7 ';HLr.: *lj>:~1t;r:j~ , JIDi{7J'ftlrm'/iii r9r(1.J;ifr!L'HJlJ ~l~iJ> iO>i§11'-ll: iO>;tL td', wij:ff: rD *~(J.I~ Ficoxylon ('.::J~ -:r;;, !Wifill"C'o;;' iJ>iO> 111
K k G') f,B~ li: f,>\ij. t= 0~~:2j;:~;t 1l'i(fLf1'<:, $Wti:k i! < 11iJ!lil3Ui :g&flM*,~(il" l-, ~::fL til\'L-, l'P-{li:ffif'fl't (1 mm')

>P K 2-5 fIM7)-;(P"t;;,o -lj}J~q'lk~"*Il~J: < ii1~~ , 1-6 iWlHfQ~m G')~~fllJJ>j'lli~l li:;ff l-, kG')~@iWlHfQJk V:~ltl*~ijDfQ <I:' Ie fi;Ur ol"a li: % tr -1 T;;t 7' '7 A

r iJ' ;O ~, rJli' ~J~ "Ficus-type" "?

11'<:0;;' 0 ~~JI Ficoxylon ClJi.V: Ficus) 5 *-!fUk V:m&: F'icus M.\'2&B'[ CW~ft l-t,'tt= # 5 fill,;!it.ftl! ti3tWiK J: ;;,) 1: lt~~"t;;, 1'C ~~f;fl~<v~)k.V: i!t'i1i:Klk-Cfij't.r ~ CD *~ jilliJ''h ~ <V"C'!Wi~c it'!?,<!'.> Ficoxylon angusi'i1Ja1'enchymatos'um t:r.;;, ~ x ~''- t=- " ( 0103 ) -0

Jour. Geol. Soc. J,lpan, Vol. XLIV, PI. 21 (9) (SHIlIfAKURA)

Fig. 1.

Fjg. 2.

Fig. 3.

Fig. 4.

41.

Pliocene Shells from the Teshio
Oil Fieiq, Hokkaido*
By
Kinji KANEHARA(The Imperia l Geo!ogical Survey of J apan; received
May 1st.; read J une ·19th., 1937.)

General remarks
Th e J:Ocks developed in the Te:oh io Oil Field of Hokkaido are,in the main, the so-called" Upper" and" Upper most" Tertiary
Seriee. According to K. \~T A'l'ANABE l ) of our Survey, the "Upper
Series" is divided into three beds, namely, enumerated from th elower, Wakkanai Hard Shale, K oitoiye Sandstone, an,d Ylichi
Sandstone. Th ey yield molluscan fossils, those collected by him
being presorved in our Survey, and whic h the writer describes il1
th is paper.
Th e determined specie!:' are a::; follows:
S olemyct (.d. chct'rct£ ) tolcunag ai YOKOYAlIfA
Ac·ila (Tntnca cilct ) hwo ~tai KANEH ARA, n. sp.
Yoldia cfr. lis chk ei SlIUTH
Yo lclia th1'acia efonni s scapha YOKOYAlIfA
N a,vic~t la sp .
Pecten (Patinop ecten) y essoensis JAY
P ecten (P cttin01J ecten) poculum YOKOYAlIIA
V ene1'ical'cl-ict to kunctga.i· YOKA~AlIfA ? .
.
l 'hyasil'a, nipponicct YABE et NOllfURA
CCl1'cl-il,rm (Cerast oclel'ma ) sp .
Sel'1' ipes notabilis (SOWERBY)
Chione astal·toicles (BE CK )Ma comct cctlca1'cCt GlIfELIN
jJiacom(t nasut'a CONRAD
Spis~tla polynyma a,laslcana DALL

Wakkanai Ko it .)iyerYiichi
a
r

f

r
r
r
r

f

f

l'

r

r
a
r

r

.:. By t he perm ission, of Dr, S, Y ,~MANE , Dil:€'ctor of the Imperia l Geo logical
Sur vey of Japan,.'; , " .
(1) K. . WAT ANABE : E x pl. Te xt. Oi l-.E'i e lds. Japan . Empi re, Sec. XXXI, (Imp.
Geol. Sm\,. Japan.) 1936.
' . '

-

' (104)-I

701

K. KA NEElA RA

Panomya. ,a r ct~ca LAM;ARCK ?
Mya cunei fo1' mis (BOHM If
P er ip loma yo7coyctmcti MAKIYAMA \•l'
1'~t 1"1"ite lla (H austato1') sa,i shu,ensis YOKOYAlvIAfl'u1"1"itella (H a~ts t ato1') nipponica YOKOY.UfAf
N atica (l'ectonatica) janthostoma D ESH L\ YES
f
Ranella (P1'iene ) Q1'egonensis (REDFIELD)r
N ept~tnea 'I!:inoSCt (DALL )r
Plicif~'su s yanamii '(YOKOYAMA)r
1'1'Ophon (B01' eotrophon) be1'ingi (DALL)r
Lincist1'olepis p e~'lepi s KANEHARA, n . Sp.
1"(1'':''''''rare, f-fr equent . a-abundant.)

This fossii faun a, although quite small . in number, seems to
be ' a typical boreal one. Deducting four which have not beenacur ately detennined, of the tWEinty.-·ix species above enumer ated,
there remain twentytwo of which eleven ar e still living an d th eremaining eleven not yet known aR living. The" Upper Series"
is u nderlain by the" Middle Series " of Miocene age. From these
considerations and from the .tratigraphical standpoint, we may saythat the age of the beds containing these fossils is P liocene.

Description of t he Species
Genus Solernya LAMARCK, 1818.
Subgenus Achamx DALL, 1908.
Solernya tohmagai YOKOYAMA
Solemya tohmagai YOKOYAMA: J our. Coll. Sci. Imp. Univ. T ukyo., Vol. XLV, Art.
5, p. 31, PI. VI, figs . 1, 2, 3.

Rerna1'ks:-A large specimen was obtained, which is m easured
over 100 mm. lonf; and 40 mm. high .
Locality :- Southern tributary of Tokotnai (Mibu-no-Minamizawa)
Chuwo-Saraki.shi.
Geologica.l horizon :-vVakkanai Hard Shale.
Occun'ence :- rare.
Genus Aeila H. and A. ADAMS, ~858.
Subgenus Tnmeaeila SCHENCK, 1931.
Aeilct ht?'odai K ANEHARA, n . sp.
P I. 22 (10), figs. 4-10.
N~,cula cobbolcliae SOWERBY; YOKOYAMA:

Jour. F ac. Sci. Imp. Univ. Tokyo, Sec. II,
Vol. 1, Pt. 7, p. 246, Pl. XXXI, fi gs. 3, 4.
-( 105) -Pliocene Shells from .the Tesllio Di l Field, Hokkaid6r{O$Acila " cobboldiae (YOXOYAMA)", KURODA: Venus 'Vol. I, No. 3, Appendix ' p.
8.
Acila ins'ign'is (GOULD), SCHENCK .(partim.): G eo1. Soc. America Spec. I;'apel'~ No.
4. p. 99.

Holotype :-A left valve from the Yuichi Sandstone; preserved in
the Imperial Geological Survey of Japan.
Rema?'7cs: -This species wan once examined by T. KURODA,
according to whom it has erroneously identifie'd as N1('wla cobboldiae SOWERBY by Dr. lVL YOKOYAMA, with which, how:ever, it
Tesembles n either in outline nor in Ec ulpture. Dr. H. G.. SCHE!-'<CK
has united this species to Acila insignis (GOULD). But Acila insignis (GOULD) is much thi.cker and of less height · with. finer
sculpture than the present bpecies. Further, . the former has noarea of obsolete radial ribbiDg, whi ch is very distinctly developedon the latter. The line of primary bifurcation of Acila insignis(GOULD) is situated much farther bohind than that of the prebent
speCles. The cordate escutcheooal view of the latter is a r emarkable contrast to the almost rounded view of A. insignis (GOULD) .
The writer proposes the name Acilc(, lcw'odai for YOKOYA¥A'S'" N-nc-nla cobboldiae SOWERBY", reported from Embets and T eshioof Hokkaido and Kurosawa, Akita-Pref.
A description of A.cila (l'nmcacila) hwoclai, n. sp . fo llows:
Shell thick, longer than high, modemtely inflated, ovate-l'olmded III
outline. Antero-c1orsal i11argin gently convex . Anterior end more acutely
rounded than posterior. Ventral margin broadly convex. Posterior maJ'gin
convex hecause of pouting; in escutcheonal area. Beaks. ap pressed andopisthogyrate. Escutcheonal area ill-defined by blunt ridge I'Unning posteriol'ly, Lunule nal'I'OW, more or less distinct. R ostral siJlus almost indistinct . Shell smooth until it l'eacheB height of 1.5 mm., then bifurcatingr adial ribs appeal', separated by nar rower interspaces. Ribs rong'h andgradually widen . Secondary b~fur cation developed, although r arely, on
the antero-dorsal ar ea, especiall y on full grown specimens. InI!el' margin. crenate on J'ounger shells and not on adult ones, on which is developed
distinctly the ar ea of obsolete radial ribbing'. Interi or nacreous, smoothand shining. Hinge with narrolV triangular chol1clrophore directed forward. The anterior line of teeth long', startecl from the beak, slightly
arched , increasing i n height distally, about two-thirds t he l ength of dorsal
margin, with about 22 teeth; the posteI'ior one meeting the anerior 'at
nearly 100 deg., short and straight, with about 12 t eeth; the first · teeth
is parrallel to the l ower edge of th e chondrophore.
-(106)-

706

K. KANEEIARA . .

L engthHe;g bf. 32.0mm.
30.5
23.S
22. 0'
25.0
34.0. 26.4lllm .
25.0
18.2
lS.0
2fi.S
29.0

Dimentions : -•fHolotype
P aratypc No. 1.
No . 2.
No.3.
N o. 4.
No . 5 . .

Thickness 'Semithickness
S.5mlli .

16.S

11".0
10.S
5.3
10.5

Locality: ~Ainu- zawa Yoshid a-zawa, both tributary to Parornautnai; Higashi H assen-no-sawa, Nishi-Ollupnai, Onupnai.
Geological hO?'izon: - Yuchi Sandston e.
OCC7.l?'?'ence: ---:-rare.
Genns ~Mya LINNAE US, 1758.
Subgenus 111ya S. s.
Mya cuneifo?'mis (B6HM)
PI~U?'omya cuneijo1'1n1$ BORM :lJ£ya clonaeijorrn:is KURODA:

Jahrb . Preuss. Geol. Land. , p. ;)57, Pl. 29, figs. 1,2.
Geol. Central Shin ano, p. 63, Textfig. 7 .

HO~BlA 'S

Rerna?'ks:~The largest specimen is measured 120 mm. long,· 87

mm. high and 55 mm . thick.
.
Locality:.-Yoshida-zawa, a tributary or Paromautnai, Onupnai.
Geological hO?'izon :- Yuchi Sandstone .
Occu.?TenCe : - abundant.
Genus Nept7.lnea BOL'I'EN, 1798.
Nept7.lnea vinosa (DALL)
PI. 22 (10), fig. 1

Chrysoclomus vinosv,s DALL:"t7, p. 10, PI. 6, fig. 3.

Prof'. U. S. Nat . Mus., Vo l. 56, p. 323. , Vo l. 66, A rt.

R ernm'lcs: - The morphological variations or sh ell characters arc
frequently obo:erved especially on the sh ells of th e northern sea.
Th e specimens now imder consideration seems sligh t ly more slendercompared to the illus~rated figure given by DALL:
Locality:-Ainu-zawa, a t ributary of Paromautnai.
'Geological .ho?'iion :- Yuchi Sandstone.
.
OCCU?TenCe : --;ral'e..
-(107)-Pliocene Sbe lls from t he T esbio Oil Field, Hokkaido'i07

Genlls Plicij'ftS'US DALY", 1902.
Pliciju8'US yanarnii YOKOYAMA
Belct yanami-i YOKOYAMA: Jour.' ColI. Sci. Imp. Univ. Tokyo, Sec. II, . Vol. I , Pt.
8, p. 261, Pl. XXXII, fig. 11.
.

L ocality :-Yoshida-zawa, a tributary of Paromautnai.
Geological hO?'izon: - Yuchi Sandstone.
Occ~t?'?'ence : -rare.
Genus TTophon lVl oN'rFoRT, 1810.
Subgenus BO?'eot?'ophon FISCHER, 1884.
T?'ophon be?'ingi D ALL
PI 22 (10), fig. 3

T?'ophon (Ncptnnat ) bC1'inrJ'i DALL: Pl'oc. U . S. Nat . Mus., Vol. 24, p. 544, Smiths.
mst. U. S. Nat. Mus. Bull., 112, p. 109, P l. 10, fig. 6.

L ocality :- N orth,vest of Onupnai-Pass, Onupnai.
Geological hO?'izon :- YClChi Sandstone.
OccU?'?'ence : -rare.
Genus Ancist?'olepis DALL, 189L1.
Ancist?'olepis pe'~t l epis KANEHARA , n. sp.
Pl. 22 ( 10), fi g. 2

Ifolotype : - Au example from the YClChi Sandstone ; preserved in
the Imperi al Geological Surv0Y of Japan.
Desc?'iption : -She11 con ir, ra ther thick, with about seven tur r eted whorls.
Nucleu s smooth, of one whor l. Suture distinct and linear , with widechannel in front owi ng to firs t spiral rib. Axial sculpture of fa int linesof g~·ow th. Sp iral sculpture between the sutures of fou r strong, squarish,prominent r ib!", with slightly narrow channeled i nterspaces, of which there
are about seven on last whorl. Apertru'e ovate. Outer 'lip not thickened,
undulated by ends of ribs. Thin callus on inner IIp : C.ohimella sh ort
and r eflected. Canal t wisted , rather nal'r01V, deepl y r ecllI'ved, forni ing
strong fas ciole.

Occu?'?'ence an,cl cornpcwison: - Only one well preserved speClmen
was obtained by '\V'ATANABE. An allied species is B~tcc inurne~tgmrnmat~m/' DALLl), which was r eported from the P etrol Bank·of Beriug Sea. The present species is distinguished from B.
(I) W. H . DALL: Sm iths. Misce l. Coi l., Vol. L ., Pub!. No. ] 725, p. 153, (1907).
SmiU)s. ln st. U . S. Nat. Mus. Bu ll. 112, p. 98, PI. l~, fi g. 2.

-( J0 8 ) -708

K. KAN JUT l\RAeugmmmcLt1Lm by its lower spires, llonbeaded posterior .'piral rib
and shorter columella. Apparently" the latter has a t hinner shell.
Dimensions: - 30 mm. higb and 19 mm. in maximum diameter.
Locality: - Yoshida-zawa, a tributary of Par6mautllai..
Geological hO?'izon :- Yfi chi Sand. tone.

Explanation of Plate 22 (10)(All figllre3 are in natural size)la and lb. Neptunea vinosa (DAn)
2a and 2b. .Ancist?·o/epis peLtiepis l LU\EElARA, n . sp.
3a and 3b. Tl"ophon (Boj'~ot?'op hon ) be;-ingi DALL.
4, 5a, 5b, 5c, 6u, 6b, 7, 8, 9a, 9b 9c.

10.

Acila (TntncaciicL ) kW'oda'i KA NEIIA1B , n. sp. (ParM.yp es )A eila km'oclai K ANEIIARA, n . sp.(Holotype).

~L;:~lljl& L-t:: ~) fj: 1
11' ill.f:tOJlii;: J:-::>-C 7<:'\li.~iih FFl n, GtliM~ -It G;tLt::'ff-/iH ;:)j,tv'-C""(';i?;;,o ~".) 1t15 v-:gjSvt g!t t:1J!r&tl(Olli ~):ffi3t"I' :·;:~ft-lt G~1.. ,~-It G;tL I::: t

B.illj';j-i", 7(:Jjj{, ~1":J I: vlfr,-L;:~-:l::;: J:-::>,[

v -C ,;;, ;;, il' , !J<!H;: l: f.ll ~)frX-J.\; ~)1fl'ilT !: ~.¥l'''( liic -C~lljl~ ~ ij"J.j- t:: ~) vt , -Eiiil,ll~ Glirr

NI ~*J;J- , X1t15 c L- -C k (l)jltW i ~*'C:'?:n G;tLIt.l*lIl to <b MI n> ~ ""(·f.. < , 1t15 I;: J: ;;, Jili.!f1-1!\]·J.t v1;~ K iJ:;;, ---::> (D ;"7" -~~,1&'(lii il>:';:J) I:: ~~ ;;, H~j""j";;'n, b ""(. ,;;,;;,

026, ,pfifi·..g 1CtJ~il£ L-~t:: t v vt 22 flll, 1k tiJUj~f.. ill/J~~f,f.tC"il', Ni'tii'J:II:7i'l'iB:v J:'.ijStl"'i=.ffi;/11fil' 1ft?l~:'/J',- G;tL -c ,\ll::: t'{t:;:!!!'(:;f;Ji;i9'~""('~ ;;, c v'~':'/J',- c:;r!ili' Ux.v' l:1l,r.t ~:{.fY;;' o10:;: V-t ij. ~* 1C1fI:i1]" -It G;!1.. t::: /l/ frUifi':lif:, 1~k~J:V:f~@ ~ v' I:: tiv' t::: l11'ill'J)!(Oili, illl·;f;t , ;Jd*~~ .~±K~<m.V~1C*Y;;'o-(109) -

Jour. Geol. Soc. Japan, Vol. XLIV, PI. 22 (10) (IC.<\.l\E1:I.\I~A)

3a

3b

4

6a

9a

Gb

7

8

42. Polydesmia canaliculata Lorenz, anOrdov ician Actinoceroid Cephalopod.
By
Curt Tmc HElt'l', Copenhagen.
(Recievecl May 13th, r ead June 19th, ]937)

Some time ago Dr. T. KOBAYASHI directed my attention to
the possibility that the genus n1a?·~6yamaC e?·a.'·, establish ed by him
in 1931, was identical 'with the genu s Polydesmia, described by
LORENZ in 1906. Professor W. SOEHGEL kind ly placed the holot.ype
and only sp ecimen of Polydesmia canaliculata LORENZ at mydisp:>t:al. This sp ecimen is k ept in the collection of th e Geological In stitute of the University of Freiburg, Germany. The studyof this sp ecimen made it clear at once that Dr. KOBAYASHI'S assumption about the r elation between ]1a?'uyamacems and Polydesmia
was ·correct.
The genus Polydesm'ic6 was establish ed by LOHENZ for the
single sp ecies Polydesmia cana l ic~dc6ta. The f08 sil was r egarded
as a ga.:> tropod remain (L OHENZ 1906, p. 89).. According to LOHENZ,
the specimen is derived from the lowermost Ordovician (" unter stes
Silur") south of L aiwu in Shantung. Nothing is known about
the exact horizon or the accompa nying faun a. A study of theI'pecimen shows that it is a part of the <;iphuncle of an actinoceroid cephalopod.
The sp ecimen is 45 mm. long and consists of eleven siphuncular Sf'gDlelltS. The phragmocone has been destroyed, except for
traces of some of the septa which are visible in the vicinity of
the ciphuncle. The lowest Eegment preserved is about 14 mm.
vvide. Th e 'w idth of the segm ents increases adorally to 17 mm.
in the fifth segment. The average h eight of the segments is about
4.5 mm., except for the two 10,,\7est segments which are only 3.5
mIn. high: T h 0 septal necks are 1.5 mm. to 2.0 mm. long; tlrue
segments are broadly nummuloidnl and the area of contact. between the a:;Iapical side of the connecti])g rillgs and: the ado!L'al-( 110) -710

Cur t TElC FfERI'.

Fig.

Polyclesmia canal'£c-uiatc!
" \¥.ftif.iWi' .1I LORENZ. I-Joiot,ype. Lower
Ordov' cian, soutb of Laiwu,
Sbant.ung. Nat. size. Geological Institute of tbe University of FJ'eiburg i. Br.,
Germany.

Fjg.2.

The same specimen, magnified 2.5 d iameters.

surface of the septa is about 2.5 mill, wide. The endosiphul1 cular
canal is broad, its location i's apparently not very eccentric. The
radial canals are long a ud steep. They pass obliquely downward
through at leafOt two segment~, until they open .into the perispatium immediately below the septal neck.
The genotype of J11a1'1~yamace1'a s, lYI. shimam'w'ai KOBAYASHI,
is evidently ' congeneric with Polydesmia canc~ l iwlat(6 ·LORENZ, and
KOBAYASHI'S definition of 111a1"l.~yamace1'as can be applied in its
essentials to Polydesmia, although I would not regard the presenceof the, vertical lamellae within the siphuncle as a diagoostic feature, 1 have shown previously (TEICHERT, 1933, p, 143) that thevertical radiating lamellae within certain actilloceroid siphuncles.-( 111 ) -.

Polydesmia canaliculatn; LORENZ, an Ordovician Actinocel'oid

711

are probably due to secondar.y processes of r ecrystaliization of thestereoplasrnatic matter. The genus· Polyde8?nia may then be defined
as follows:..
Actinocel;oidR ~'Y'ith very bi'o,a d siphuncles, the ~ siph{mcularsegments being very wide and comparatively' low; the septal ne ~ks
long, evenly curved, semi-circular in cross-section. The coi1l1ecting
ri;ngs are in broad contact ""ith the adoral surface of ' th~ septa .
GenotYj)8 : Polydesmia canaliwlata, LORENZ.
In 1931 (p. 54-55), KOBAYAsrrr described three ,·pecies· of Jll{a1'uyamacems . w11'i6h now must be placed in Polydesmia, viz. Jll{.
shimam'w'ai, ]II{. 'Wata1wbe'i, and Jll{. peshanensis. The latter species
comes from the J,Vlan6yamac e1'as limeston e of Shantung.
As has been pointed out by the present writer in 1933 (p.
221) and by K OBAYASHI in 1934 (p. 457), A1'menoceras elegans
ENDO from the Ssuyeri form~tion of Manchuria (ENI)o, 1932, p.
84) belongs to the same genus. The holotype ' of ' this species is
the most complete r epresentative of Polydesmic6 known hitherto.
None of these foul' species of Polydesmia seem to be conspecific with t h e genotype. The greatest similarity existR between
the genotype and Polyclesmia p eshq,nensis (KoBAYAsrrr)- both species
come from the Ordovi cian :of Shantung. The .h eight of thecamerae is approximately the same in both species. . However, a~far, as can be seen from the picture of P. p es~uf11e nsis reproducedby KOBAYASHI (1931, plate 4 fig. 2b), the sep~al necks o~ . this species
are considerably shorter than those of Pcanalicu,lata.
In 1935 (p. 19) I have pointed out 'th~t]ll{a1't6yamace?'as (nowPolyclesmia) is . among the early types of actinoceroid cephalopods.
I maintained that the actinoceroids were possibly derived fromanother, earlier, eurysiphonate stock, viz. the Endoceroidea, and
L . F. SPATH has recently expreBsed similar opinions (1936, p. 165).
KOBAYASHI (1934, p. 432) has taken the more conservative standpoint; he indicates that the Actilloceroids are linked with stenoRiphonate ancestors by such intermediate forms as Sacto1,thoce1'as.
Unfortunately, the specimen of Polyclesmia d e8cribed above does
not contribute anything of importance for a renewed discussionof this problem .

-( 112)' -' -Cill·t TEICHERT.

712. B ibliograp h y .

R. ENDo: The Canadian and Ordovician Formations anrl Fossils of South Mancburia.-U. S. Nation. Mus. Bull. 104 Wasbington, D. C. 1(1:12.
T. KOBAYASHI: Studies on tbe Ordo.vieian· Stratigraphy an d Paleont.ology ofNorth . Korea with ' Notes on tbe Ordovicia n Fossils of Sbantung andLiautung.- Bull Geol. Surv. Cb ' sen (Korea). Vol. lJ, No.1. Keijo 1931.
- -- : The Cambro-Ordovician Format~ons and Faunas of .Sout,b Chosen.
Paleontology. Pt. I. Middle Ordovicia n Faunas.- J our. Fac. Sci. Imp. Univ.
Tokyo. Sect. II, Vol. 3, pt. 8. Tokyo 1934.
Tb. LORENZ: Britriige zur Geolog ie und Paliiontologie von Ostnsi en unter besonderer Beriicksichtigung del' Prol'inz Sehantung in Cbina. II. Pala eontoJogischer Tei l.- Zeitscbr. Deutsch . Geol. Gesell~cb., Bd. 58. Berlin 1906.
L. F. SPATH : The Pbylogeny of tbe Cepbalopoda. Pa!aeont. Zeitscb r. , Bd. 18.
Berlin. ] 936.
C. T EICHERT: Del' Ban del' actinoceroiden Cepbalopo;!en.-Palaeontograpbica Bd.
78. Abt,. A. Stuttgart 19 ~3.
- -- : St·ructures and Pbylogeny of Acti.n oceroid Cepha!opoc!s.- Amer.
J ourn. Sci. 20. J 935.
~~1iU*c, 7 !7'T / -t: ):1 -1 YIDVE~4v -1'1It r:olyclesmi~

canaliculata LORENZ G~~~)

Curt. TEICHERT"

1/":/ 'Y

rR:?Jj)f r\'I:.l'i:'fll:~F~'i: e) f;!I*,mrR: V%Jl ·c:'/j:" t::: :0 l.lLr.!~fu"f v;>js:fillfi Mcwuymn'a cems

im-:fi[i c [liJJ~.rK L.. -C, 'q{£'-?"'C · lrla1·u.yamacems KOBAYASHI, 1931 I'.t Polydesmia LORENZ,-.
ItJ()6' v synonym c' tJ: : ~, i1.'? Polydesmia I'.t~JlK~WfG-C , IDIlJi!:i!;'IircMi)-j-:Oo PolY-

'.

-

.

•

r

desmia. LORENZ, Polydesmia canaliculata LORENZC')Mi)MI, ' f,illn91t'ftt a: ftC L.., ;>js:f,ill c p

pe.shanensis (KOBAYASHI) c V ~l1~ a:ftcY G~';F~/J ,*no)'-( l J3) -,'_ 43.

On Some Neogene Shells Fro'ln
Japan''f (Part I. )By

Kinji , KANEHARA(The Imperial Geological Survey of Japan, Received
May 13th; read June 19th, 1937)

I n this paper, the writer describes Eome interesting fossil sh ells
found in the Neogene beds of several localities, now preserved in
the I mperial Geological Survey of J apan.
, .

Genus l11el ongena SCHUMACHER 1817. (1)11lelon.cJena sazana?ni nov. spec.
P!. 23 (11), figs, 10, ll, 12, 13,H olotype :-An exampl e from the U yetsuki Series ; preserved in the
Imp . Geo1. StU'v. Japan.
Descl'iption :--Shell of medium size, biconical in outline, somewhat
el ongated, spired with apical an gle of about 70 degrees and more. Spire.
conic, fou r preserved, stl'Ougly shouldered and flat-sided, separated byundulated and feebly depressed sut ure. JUdging from the body whorl,
periphery may be ovate a nd not so large. OuteI' lip n ot thickened. Inr;el'
lip covered with thin and narrow callus. Anterior canal partly bl'oken,
but seems nal'l'OW, el ong'at ed, and slight ly gell iculated'. Sculpture entil'ely
spiral. Two rows of tubel'culum, anterior ' and posterior, developed, of
which th e uppel' fOl'ms a keel-like shoulder. Tuberculum, nine on ultimate
whorl, eight on p ennltimatB. NUlllerous rather unifol'lll threads of regularmagn itude developed on entire surface.

Dim ensions:-72 mm. in h eight, 52mm. in maximum diameter.
Compa?'ison and ?'ema?'7cs:-llle longena b?'evispira K. MAll" By the permission of Dr, S. YAMAN E, Director of the I mp. Geo!. Surv. J apan,(1) Subgenus Galeodes s. s, and Melongena SCEImfACEIER are synonymous, according to J, THIELE.
-(114)-

,02an Uppal' Eocene fossil of Java, seems closely a llied to thepresent. new species, although the former is provided with morerounded and elongated bodywhorl. i11elongena bucephala LA&f.<")and M. ickei K. MARTIN ':I) are provi.ded with far lower spires.
Locality: -Yoshikawa-mura, Maniwa.g un, Okayama-Pref.
Geological 'ho?'izon:~Uye tsuki Series. 'Collec to?':- M. SATO,. Geologist of Q\ll', Survey.
OCcu?'?'ence:-rare.

TIN 't. ,Genus T'Lt?'ritella LAMARCK 1799.
Subgenus Hd'Ltstato?' MONTFORT 1810.
'1'1t?Ti tella salcak'Ltmi nov. spec .
PI. 23 (ll), figs. 1,2.

Holotyp e :-An example f rom the Hacchorei Han1 Sha le; preserved. in t~e' Imp. Geol. Surv. Japan.
' Descl··i ption:-Shell high, tarreted wi th apical angle of 10 c1eg'l'ees,
seven ben wborls pl'eserved, all fl at and spimlly sculpttned. Suture d istin ct but not deep. Wide spiral ri bbOll, situated close to upper suture,with f a int spiral cord superposed on it, and seven cords developed, thel owest of wh ich is snbsutural . Of t hese seven cords, fifth from top rather
st ronger than others. Oblique ribbon developed on basal disk neal' its
margin. Aperttll'e angulate and cont inuous. Lines of gl'owth, very fineand close, H (tnstat01'-like .

Dimensions:- 84 mm. 111 h eight, 13 mm. in diameter of thelast whorl.
Cornpa?'i80n and ?'e'l1w?'lcs:- The present new species is charact erized by its small apical angle and high turreted form. No
species either allied to it or resembling it has . so far been described or reported from Japan. These species, such as T1WTitella.andenensis OTUKA( 4) , T. lci i ensis YOKOYAMA(fi) and T. pe?'te?'ebTa(1) K . MARTIN:
fig . 12.
(2) K. MARTIN:

Dienst. Mijnb: Nederl., Wetens. Meclecl., No. 18, s. 22, T ,tf. 3,

SaTI? l1l . Genl. Reicbs. Mus. Le:df'n, Neue Fo~ge, Bd. 1, p. 207,
.T af. XIV, figs. 206,207.
(3) K. MARTIN: Samm. Geol Reichs. Mus. Leiclen, Neue F olge, B'1. 1, p.
309, Taf. XL V, fig. 73.
(4) Y. OTUKA: Bull. Eal'lbq. Res. lnst., XII, pt. 3, p. 623, PI. LT, Figs. 100,
113.

(5) M. YOKOYAMA:

Jap. J OUI'. Geol. GeoJI'., Vol. II, NO.3.

-

t 115) -On sOllle Neogene ShGiis from Japan

783

YOKOYAMA(IJ, are alJ sculptured in the similar way, but have larger
apical angle and no sutural ribbon. The last lJ).entioned difference
is observed between TU1Titella sC1'ipsensi s HAN.NA (2 ) and the present
species. . 'l'161'1'itella injmlimta N AGAOr:l) has more regular andnumerous spiral cords than the present new species.
Locatily.~-Minami-Nayo, · hi-gawa, Nayosh i-gun, South Karafto(Sachalin).
Geological h01'izon: - Hacchorei Hard Shale.
Collecto1': -K. SAKAKURA, Geologist of the Mitsubishi Mining

Co.
OCC161'1'ence:- raro. Only one fairly we11- preserved specimen
wa,' obtained.

Genus Ouspida1'ia N AIWO 1840.
Subgenus Ca1'diomya A. ADAMS 1864.
Ouspida1"ia makiyamai nov. spec.
P !. 23 (11), figs . 3,4,5,6,7,8, 9.
H olotyp e (Fig. 8 ) :-An example from the A sagai Sanclstone, presel'ved
the Geological In<;titute, Faculty of Science, Imperial University ofTokyo,
D escript-ion : -Shell large f01' the ge nus, moderataly inflated, rostl'ate
Beak p rominent, central, stl'ongl y incu l'ved and tUl'lled backwards. Posteri or end rap idly narrowi ng, form in g rostl'um which t a p ers backwa l'd atan gle of about 40 degrees. Rostrum not so long, subtl.'LlJ1cated termin ally .
Ventral margin bl'oadly rou nded ; anterior also rounded broitdly and in rolled, joining the ventral by a smaller al'c . Disk sculptured with twelve
to fifteen elevated, simpl e, radi al threads, the whole c l'ossed by fine, concentric lin es of gr owth. The radials increase in prominence near posteriol'
end, each of them accentuated toward ventral side, We find only closes et lines of g rowth on rost l.'um. Resilium under beak fa,intl y observed
111 present s pecimens.

111

Dimensions: H olotype(1)

L ength21.5 mm.

(Fig. 8)

M. YOKOYAMA:

H eight17.0 mm.

Thickness
10.3 mm.

J om·. Coll. Sci., I mp. Univ. Tokyo, Vol. XLV, Art. 2, p.

] 1, P I. II, figs . 2-5.
(2) H ANNA: Univ. Cuiii- ,Publ., Bull. Dept., Geol. Sci., Vol. 16,

0.8, p. 308,
PI. 49, fig. 10.
(3 ) ~. N'\GAo; Sc i. Rep. 'l'6holm Imp. Univ., (Geol.l, Vol. XII, No.1 , p. 102(92), Pl. XV, figs. 27-33.
-(116)-

K. KANEEI .'IRA

784

Paratype (Fig. 3)(Fig . 4)(Fig. 5)
(Fig. 6)
(Fig. 7). (Fi g. 9)

24.0
15.0
20.1
18.0
19.7
16.2
15.0

13.0
12.0
16:0
13.0
15.5
13.5
11.5

1-1.0
7.0
11.0
9.2
11.0
10.0
8.0

Cornpa1'ison and 1'ema1'lcs:-Thc recent form from the J apaneseseas, Ouspicla1'ia (Canliomya) gmtl cliana HINDS(Il, is quite smallin size, provided with ten to twelve radial threads, its r ost rum
being much longer than in the present species.
C. (C.) costellata. DESlIAYES v~r. cQ1'p nlenta DALLU) differs fromC. (C.) rnalciyarnai by its numerous and les8 prominent radials.
I n C. (G.) planetica DALL(:l), it is difficult ~o distinguish the disk
from the rostrum. . C. (C.) calijQ1'ni ca :bALL(~ ) and C. (C.) i smlslcyi
H ANNA(cr) have radial sculptures on their rostrum.
C~bspiclMia (C.a1·cliomya) i8 a rare fossil in Japan . The present
material, which was obtained by Dr. J. MAKIYAMA(fo) from the
Asagai Sandstone of Yotsukura, Iwaki, are now preserved in the
Geological Institute of the Tokyo Imperial Univer sity and somein the Imperial Geological Survey of Japan. It is very interesting
to k no"w that this genus is frequently found in the Eocen e Beds
of Califol'nia(7)(S), suggesting a fau nal connection between Japanand California.
Strangely' enough , a closely resembling species, Ouspicla?'i a(1 ) A . ADAMS : A=a ls. Mag. N at. H iRt. LOl1don, 1868, p . 367.
PILSBRY: Ca~al. Marin e M oll. J ap., p. 13(;(2) W. I-I. DALL: Bull. Mus. CompoZoo!., XXIX , (Bla ke Mol!.), p. 298, PI. III,
fig . 9.
(3) I. S. OLDROYD : Stanf. Univ . Publ.. Geol. S ci ., Vol. I, p. 99.
(4) I. S. OLDROYD: I dem ., p . 101, Pl. 5, fig. ] 3.
(5) HANNA: Univ. Calf. P ubl., Bull. D ept. Geol. Sci., V ol. 16, No.8, p'. 280',
PI. 34, figs. 5, 8.
(6) J. MAKIYLIMA : Mem . Co Il. Sci. Kyot o I m p. Univ. , Ser. n, V ol. X, No.2,
Art. 6.
(7) R. E . D ICKERSON : U niv .. Calif. Pub l., Bull. Dept. Geo1. Sci., V ol. 8, No .6,
pp. 6H.80.
(8) F . B . .MEEK a nd W . M . .GAllll : . U . S. Geo l. SUl'v., Pa l ~e ontology Vol. 1,(1864 ).
-( 117 ) -On some Neogene Shells from Japant85(Ca~'diomycL)c?'aspedonica DALL1), has been d escribed from the
Oligocene Beds of Jam~ica. Upon comparing with the illustration
given by DALL, it is difficult to find auy differ ence between C. (C.)
malciyamai and C. (C.) c1'CLspeclonica DALL. As to whether these
two specie::; are really genetically and specifically related to each()tp,er or whether the resemblance in the morphological charactersis only apparent and fortuitou13, the writer has no definite opinion
at present,
Lowlity: - Yotsnkura, Yotsukul'a .machi, 1waki-guD, 1waki(Fukushimaken) .
Geological h01,izon :- Asagai Sandstone of Shiramizu Se ries~) ,(Lowest Miocene or Upper Oligocene.)Collect01':-Prof. Dr. J. MAKIYA MA of the K yoto 1m.perial University.
OCCtt1'?'ence : -not so rare.

Explanation of Plate 23(11)(All figures arc in n atural sjze)'L':u n'itellcl (Hct'ttstat01') saJcalm rai nov. spec. (Holotype) ' f rom
the Lower Miocene Beds (Hucchol'ei Hard Shale) of .South
Karafto (Sacha lin).
l?igs. 3-9.
C'uspiclal'ia (Cardiomy a) 1nakiy amai nov. spec . from t he Lower
Miocen e 01' Upper Oligocene Beds (Asagai Sandstone of
Shirami zu Series) of the J oban Coal Field.
Fig. 7.
Holotype.
Fi gs . 3-6,8,9. Pal'utypes.
Figs. 10-13. 1I1elongena sazanami nov. spec. from t he Lower Miocene Beds
(Uyetsuk i Series) of Chllgoku.
Figs. 10,13. Side view.
Fig. 11.
Apical view .
.!i'ig. 12,
Basal view,

Fi gs. 1,2.

1) W. H. DALL:Trans. Wagn . Free lust, Sci.. Vol. III, Pt, VI, p . 1506,

Pl. LVII, fig. 17.

2) K , WATANABE: Expl. DetaHed Geol. Map. J6bRn Coal Field, See. II,(Imp. Geol. SUI'v. Japan).
-- -(118)-

786

K, KANEEIARA

jl!!.~WMftF9r~.)rfr~'i'u" Qf:l'PF ~) 4' (7)~flll ~j;ili.z,"'('Wlll!ix Ul:J)- IC:o1)

Meiongena saZ'andini (jJfrfill)txmlif~iI~iW.jQll~:H;J:rji;f,ii'U ITfu1~{jj!I!!.'f!twl.[ili~:~~ I.-~ < co~i~j'E3*cJl·rt T:iH~~-tl.: b;fLtc:"

J[tr QrW?S <;fiilJHltl.LlMi;\%ftC JlIliT Q±I!!./llft." b 't:'£, Q0 4' ~l(j ±l!!.1j~rtt~3*c/llfco -MXt~ QJ,li]%lV 'ica1'ya CCtl/o'a J ENKINS ~~V'Ql!2tit*'I:4:ifjJ ¥,!l'llt~*<\:>Q JJJ'""(-£'Qtl" ttlCWll;Iv.:T'Q;< " :.- ij":;1- t Vl~"(: co,t;ffj1':1: rl;nIJt-*1J~'f(qg;:f]~J IICPN'?-CiJlfT QIJ2t#iJJlID'""(-~ Q 0 {!':)ililf!
o.):((n <±:;: .J: '?-cjK btL tc:JlUifilll':1:ifr-f:i!l:iV QW1[,'lk ")*W,)'Uc~¥'IJ :r Jk ...., iJ i- ?'''') !If:J~i;f,)U: ~ E1d- Q 1:fi/l:'-:ili:ftJ,TQo
2) TU1'l'1'tella (Ha u8tCtto1') sal~aht1'a 'i (~ifill )iW;liYiI;\% ")~~Jt~/llf,&V:;{fJj[1l11t~f&-1':1: ~l:.iflJiill: (7)llgU"';f,)(&V: 1l'~£7 (7) i1i!Jt:r&*lC;ifH!; '~ tLW

Q!JJM~'llt ~1';-trtl" )j'[JtI~~ili*,Ii'f~-.... tc:'-C -C J:1il:lCiV Q;;j<:l l-tf.:vlf}:-Fll1;t:: Q i\IIiHJl·I!!1I~·J{*,
mr v.i-~K 1tT:iI'-:z I.-v'o i:::.~1JJi~ ") :tOCk'fJJJ.~)ffibf~±);t WI,f.yi;t.dfj4'ij(=r-JlIJ:i~ti.J> b 'J'1I1'ntellct

co Iflll ~ ;;j;::1iiJI1'tJ{*,ll!Ttl>G:Jf0;I~-tl.: b ~ L -C ~jt:1~'f')~mn~1. tc: o Zl!: ~ -t Q l,q,~~J{l:*,]!<\:> -C~'""(-/~
iJ''r~'HJ: lfill'""(-iV Q0 ~:n frJ. I.- tdlllotf I.- < 1':1:ili:~co fm l'±:JJt~I;1. b 1':1:*

tc:' "(: co if/:EI ~ IlfJ tl> fa: V' o3) Cusp'ida1'ict (Cm'd'iLmya) mal~iyam (:ti C~fill)!lr*±I!!.'iIUiz§IlCi1\tlJ.l ijXj.zf>R~~:'~ J: Q Cuspidarla iH*ff--tl.: btL -C iV:o 0 '1ll-~±1!!. 1jK J: ( ~~TM5i'Jl:r&*,mr.J: ~ if l-tc:1t~6-c,

llliJlID Cardiornyet lCJZihrQo Cw'diomya f1*~1JlIj'H")M.ijJfrt:Ji:i~illtc:'~ < ~J~ ~ ~1.Q o)litl:~ U'g ( tl" j[llCtt:E-t--:: il! Vi iJ-v 'V -( :JJ (Jamaica)
coi'lVijJfr~ri.J: !1E1iTQ~ ~ K v 7r! ;/;1-,

Cuspidm'ia cmspedonica DALT, lCi'Jj:Htl.TQ JJJ'""(-iVQ o

iliHl€ t:l¥ffiJ 1:!:' ~tL t~ Q IJl:f:JUYi':Jjt, fillk1~ij!(~ t: v' I:: tc:'v' tc:ll%~t/(mJj, fl\tIl.,~1~, ~~ f:El, *~, *;(7(1~P', iill ill , ~*flt.·r\; K~ < {av~~~ q,1 I.-J:Vf Q 0 tt,J{ftJltp.'IL4' ftC t ~rU

b -r~lJa co~ a: c b ~ L td.l!'ilit/(i1l1i, ~M<:t:tt1!l:1:!:' b ~1. Idi\tl.Ll ~xl.z, 1H~t/(i1llj.& :tOC:i.1~~,:HICi-~< ~~t v:E t:!!l{TQ o- ( 119 ) -Jour. GeoL Soc. Japan, Vol. XLIV, P l. 23 (ll) (KA:\,EH ARA )A . Pliocene Species of Elphidium
from Japan~

44.

By

Kiyosi ASANO.

(Contribution from the Institute of Geology ·.and. ' Palaeonto!ogy,
T6hoku Imperial University, Sendai, Japan.
Received May 24th; Read Jlme 19th, 1937) .

Elphidium, is one of the gen era of ,Foraminifera commonly
found in Japan, both in the recent fauna and in some of the late
Tertiary and Quarternary formation s. There ar e known about 10
species of the genu s in Japan, including one species, E . ezoensen. sp., which seems to be extinct. .
This sh ort note dea ls with the species obtained from th~
P liocone of Hokkaido and -Ifarahuto.
Genus Elphidi1L?n MON'l'FOR'l', 1808.
Genoholotype : Elphidiwn macell1L?n (FICHTEL and MOLL) = ,Nautil1lS macellus val'. FICHTEL and, MOLL, Test. Micro., 1798, p.
68, pI. 10, 6gs. h, i, k . R ecent, Mediterranean.

Elphidiu?n ezoense n. sp.
PI. 24 (12), Figs. 1.2; text-fig. I,2.
D eSC9'iption ;-Test comp a rat ively large, compressed, diameter about
4, times thickness, p eriphery rounded, usuaily iobulated, umbilical reg ion
stron gly umbonate, mu ch raised with a large boss of clear shellmatel'ial;chambers as many as 20 in last f ormed coil; later chambers slight ly inflated with ,~:avy periphery, earlie l' o.n es not inflated and entire along
periphery; sutures gently clll'ved, depressed, l'etral pl'ocesses numerous
and shor t, somewhat indistinct in the eal'lier ones; wall thick; aperture
consisting of a low broad opening at base of apertura l face, occasiona lly
with circular pores on central portion of apel'tul'al fac e. Length up to
2.2nml., br eadth ca. 0.6mm.

'. HolotYPf! :- R eg. No. 21433" Institute of Geology and Palaeontology/ T6hoku , I mpel:ial University, ' Sendai, Japan.
Locali ty:-Zarigawa, Numata, Uryu-gun, Hokkaido. CollectedI-(120)-

788

lb.

K. ASANO

lao
Elphicli:um ezoense ASANO n . sp.
F igs. l ao Side-view of Holotype
x40.
. lb. Apel'tural' view 'of Ho'otype x40.
F ig. 2.
Side-view of paratype
x 40.

2

by Mr. S. ENDO. J:[orizon: - Takiknwa beds (Pliocene).
Rema?'ks: -This species is allied to E. o?'egonense CUSHMAN
and GRAN'!.'!), but is distinguishable by the different character ofumbonal region. It is apparently variable in numbers and shapeof chambers.
Ocw1-rence : -The specIes is very common in the :;;ample collec ted by Mr. Y. SASSA of the Instit'ute of Mineralogy and Geology,
Hokkai do Imperial University,- from the sh ell-beds (Zintaki beds)of Karagai, Tirie-gl-:n, K arahuto, as well as in the type-1ocality.
This has also been collected by Mr. Y. INAr of our I nstit ute from
Rutaka-mati , Rutaka-gun, and Minami-rokusenzawa, T oyoharamati, Toyohara-gllJJ, K a"rahuto (the Maruyama sandy shale).
Other species of Foraminifera are almost entirely absent in
the materials examined and it is noteworthy that this species isfound always in association with P ecten (Patinopec ten) takahashii
YOKOYAMA,~) a characteristic Pliocene Mollusca of the above noted
1) CusIHrAN an d GRANT, Tmns. San Diego Soc. Nat . Rist., Vol. 5, No. 6, 1927,
p. 79, pl. 8, fig . 3.

2) YOKOYAMA, M., Tertiary Mollusca from Soutb K arafuto, Jour. Fac. Sci.,
Imp. Univ. Tokyo, Sec. 2, .Vol. 2, Pt.. 10, 1930 : Tert iary Mollusca fl'om the Coalfield of Uryu, I sbika,ri, I bid., Vol. 3, Pt. 6, 1932. S. NOMURA, A Note on Some
Fossil Mollusca frolD' the Takikawa 'Beds of tbe Nor thwestern PaI't of H'okkaido,
Japan. ScL Rep. Toboku Im p. Univ .. Sel'. 2, Geol., Vol. 18. No. 1., 1935.
.- . ( 1 2 1 ) -A Pl;ocene Species of Elphidillm frolll J apan

districts. Pecten talcaha.shii was first described by Dr. M. YOKOYAMA from the Neogene deposits of I sos'u; Higasi-Sakutan, MotoI
domari-gun, Karahuto; subsequently : it was r eported by him fromthe coal-field of. Uryu, Hokkaido., ThiR extinct Mollusca is, also
co~mon in the Tat~mokuti beds of Sendai, ",-vhere 'however, Elphidit.t~; ezoense has not ' yet boen found. Consequently at , pl:eSe)):~,
E. ezocnse. ,'eems to have a more or less limited distribution-. . thanPecten talcahashii, but its lator finds with the latter is expE)cted
from other places.
Geological age: -This species is a very distinctive ele m~nt in
the Takikawa beds of Hokkaido, the Zintaki beds or Maruyama
sandy shale of Karahuto. These three formation s or rather beds
exposed at separate districts are now generally accepted as Pliocene
in age on its MolIu::can fauna.
Finally I wish to express my vmrmost thanks to Prof. H.
YABE for tho revif'ion of this short note and also for making
possible its publication. Acknowledgements a re also due to Messrs. S. ENDO, Y. IN AI and Y. SASSA for presenting their specimens
to my study.
,

Explanation of Plato 24 (12)Elphicl-ium. ezoense

ASANO, n. sp.

X 10.

Pig. 1.

Zal'igawa, Numata-lllUl'a, Ul'Yll-gUl1, Hoklcaid6. " Takikawa
Beds ", ColI. S. E NDO.

P ig. 2.

K:ll'agai, Tirie-mura, Til'i e-gun, Karahuto. "Zintaki Beds ",Coil. Y. SASA.

-(122) -K. ASANO

790

B

*

~ f(\~~ ~ oUt E lp hidiu1n ([) 1 ~;fl

~

iI}'

(fi'M~)

i1lf

r:f;>f>:Elf Elp·icli l.1n C',) f:ffi "':f~f't , ~:tElO flli~n b ;tt. ,,(~Q;?~ , .p 1 till v.t , ~l:mif;i: C',) illli }l/ lllf,
ti~* v D!ll lll ltJ;~JJ:*~, :;lHc t:Iffli Il1 i.l> b~~Elf I:H -9 Q 0 ~1:*j!!i'ifj}:J¥ v JE~'Jr'I!t i.l > biMH!i-<!;tt. "('~ Q

E. oregon ense C USEIMAN and G RANT KiU!tiQ[v' ;?' , Mfll'll)~:w. V *flJi\Hc 1t~-:::> "( , .BU*il c;If"" E .. ezoense n . sp. t.. Q4'iflH:: :W''- teo ;;j:.flfiv.t , 1l1-K Pectrn takah ashi-i
YAMA

Y OKO-

K'f!l!-:::> "( Elf lfl -t Q L c iJ> b!ift ;ffri!!:;tj':}L,tlli c :i!?''- b ;tt.'Q0 ii';fl~ Pecten ta7~ahashii C',)

Elf:!t!!. "c:';>f>:1'nLM? C7,) ~~ ~;tt. t.. v'f~'iF9r i(, <b Q,I', -t:;tt.v.t ~:(f.t ~J.1. IV J.1.~;?'.o Q i(, IV H~ -I¥ b ;tt.
Q 0 jJrr C7,)~1l <, !!!P* <b Q l'ffL~ 'o 1 irrflliHliWl:;;;tt. t::* ~I:;iii':k, liJljf~ ~l'It nijj:' ;Vr1~I:~tmlj]f(.K ,~l:7fij illi: 'iii':k ,1t:* .fJ1J 4Z~X K i~H.:!!t.. llItt;TI\ a:: ~ -t0

- ( 123 ) ..:....

Jour . Geol. Soc. Japall, Vol. XLIV, PI. 2-1 (12) (ASANO)

Fig.

1.

Fig.

2.

45.

Neogene Shells from the Etaibets
Oil Field, Hokkaido. *By

Kinji K ANEHARA(Tbe Imperial Geologicai Survey of J apan. Received
May 29 t,h.; read June 19 tb .. 1937.)

Th e occuri'ence of fossil Mollusca from the Etaibets Oil-Field
was already reported by Dr. M. YOKOYAMA!) some years ago. Five
species, Nept~mea desp ecta (LINNE), B'I.I,ccinttm l e~tcostorna LIsellKE,]1acorna dissimilis (MARTENS), Yoldia scap ha YOKOYAMA and
Lllcina f'p. (=Pe?'iplorna yokoyamai MA rUYAMA, according to K .
WATANABE) were described from beds C of Mr. K. UYEMURA, which,
YOKOYAMA r egarded as Pliocene in age. In 1936, Mr. Y. IIZUKA
of our Survey inve&tigated the geological structure of this fi eldand brought back some of fO tsil Mollusca. The geological scquence as establish ed by him is enumerated from below, as follows:
Etaibets dark grey shalo
Ninara ehaly sandstone
Nobsha hard shale
Chipaperi sandy shale
Hokuryu sandstone
Of these bede, all of them arc fossiliferous, although the shells
are not wdl preserved.
The determined species are as follo-'ivs:
1

Aeilct (..!leila) clivcwieata (HINDS)
Aeila (lleila) afE. gettysb2l1"gensis -(REAGAN)
Y olclia (Y ~ldict) to1cunag ai YOKDY AMA
Yolclict (YoZclia) lisehlcei SMrI.'H.
Nueu.lanct nff. ?'obai KURODA

2

3

4

5

l'

r
l"

f
1"

'" By th e permission of Dr. S. YAMANE, Director of- the Imp. Geol. Surv.
Japan.
1) M. YOKOYAMA; Jour. FllC. Sci ., Imp. Univ. Tokyo, Sec. II, Vol. I, l?t. 7,
pp. 235-248.
-(124) -

792

K . KANEfIARA

1

234

Pecten ' (Plwgiocteniurn) afl'. · cen'osensis"(1'
rnendenhalli ARNOLD .
L~tc-ina. actttili?lea.trt CONRAD
f
1'ams (FelcGn·i ella) u s tus (GOULD)
1'hyasi 7'Q. nipponicct Y ABE et NOMURAl'
Ca?'diurn (C e?'astocle?'ma) ta?'aca-ic ~w~ YOKOYAMA l'
Venus (Chione) y-ii ?tt/w-i !lOV. spec.
l'
Ma co mn pmetexta (MARTENS)l'
Mctco?nct nas'utn (CONRAD)r
Myn cunei!onn iS (BOHM)
D entalium' aft'. yokoY(1.rn,,·i MAKlY AUA
1'u ?'1'iteUa (Haustctta?') j'01·tili1'Cttn saishuen sis

5

l'

r

r

YOKOYAMA.N at-ica (1'ectonatica) janthostoma DESHAYES
N eptunect mod estn (KURODA)
N eptnnea -inte?'sculptct !mte?' PILSBRY
N el1tunen aft'. rmkusim ensis anomalia NOMURAet RATAl '

I'

r

l'

r
r

l'

Ancist?'o lepis yam,'l nei KANE HARA IM8)B tGCcinum sp.

l'l'(1"" ' r aJ'e; f ·· · ·fre quent)

1· .. . Etaibets dar k gJ'ey shale.
2· . . . Ninal'a s baly sandstone,
3·· · ·Nobsha hard shale.
4· .... Chipaperi sa ndy shale.
5· ... Rokuryu sandstone,

The association of 'Phyasim nipp oniw Y .HE et NOMURA, .11. 1ya
cuneifo1'mis (BOHM), and '1'~w1'ite lla (Hcmstator) f01'tili1'ata saish~6 en sis YOKOYAMA is characteristic of th e ViTakkanai h ard shale(Lower Plioeene) of the Oiwake Series in the Teshio Oil-Field1 },which is situated about 120 km. north of Etaibets, Yoldia (Yoldia )21
tolc~m(Lgai YOKOYAMA and Anc ist1'olepis yamanei IL'l..NEH ARA (MS),,)are described from the J6ban Coal-Field, the latter of which is1) K. WATANABE; Expl. Text. Oil Fields J ap. Emp., Sec. XXXI (Teshio),
1936, (Imp. Geo1. Surv. J apan).
2), M. Y OKOYAMA ; J our. Ooll. Sci., Imp. Univ. Tokyo, Vol. XLV, Art. 7, p.
10, PI. II, figs, 12- 18.
3) Manuscript nam~; it .will be published at a near date in the report of
the Imp, Geol. Surv. Japan.
- - (125) -Neogene She lls frorn t he Etaibets Oi l F ield, Hokkaido.

793

found in the lowef::t Tertiary Sy:=;tem, Shiramizu SerieR, and theoverlying Yunagaya Series, whi l~ ' the former is restricted to theKamenowo shale of the YUllagaya. These two Series are recognized as of Miocene age. B1lccinum ' hulcusirnensis anomalia
NOMURA et HA'l'Al 1 ' is found in the Tanakura Miocone beds ofFukushima-ken. V enus (Chione) y-iiz1~ lwi KANEFI L\RA nov. spec.
has been already reported from the Lower Chikbets Beds
Chikbets Oil-Field under the name of Chione chicaniana YOKOYAMA,~) wh:oh beds are believed to be Miocen e. From the faunal
association and what ha:=; ju:::t been mentioned, the writer 'jf; ofopinion that the beds from the Etaibets to the Hokuryu range
from Miocene to lower Pliocene in age, and probably may becorrelated with the Ka'ivabata Series and the Oiwake of Central
Hokkaid6.

of

DESCRIPTION OF SPECIES(1) Aeila (Acila) af. gettysb1i?'gensis (REAGAN). (PI. 25 (13), Fig.
4.) Rernar'!cs: - The specimen now under consideration resembles
Acila pictu1'C~ta (YOKOYAlI1A)'IJ in outline. But according to Dr.
H. G. SCHENCK, Acila pi e t1~r'ata (YOKOYAMA) belongs to the subgenus l'nmcacila and has no rostral sin n:::, while the present

species if; provided with l'ostral sinus, 'which although ill··defined
is observable, as Ehown in the illustration.· The general charactersand the subtrigonal outline Reem to suggest affinity with Acila
gettysbmgensis (REAGAN).4J
Locality:-Sekiyu-zawa, Hokuryu-mura.
Geological Iior'izon: - Elaibets dark grey :::hule.
Occ~~r'1'ence : - rare.
(2) Yoldia (Yoldia) tok1magai YOKOYAMA. (Pl. 25 (13) , Figs.
5, 6.)
1) S. NOMURA and K. HA'£AI; SaitO Ho·on hi Res . Bull, No. 10, p. 137,
PI. XVII. fi g. 21.
2) M. YOKOYAMA; J om . Fae. Sei.. Imp. Uui". T okyo. Sec. II. Vol. II, Pt.
4, p. 201, Pl. LI, figs . 3, 4.
3) M. YOKOYA~[A; P a laeontogl'a.pbica, XXXVI, p . 194. Ta.i. XXV, figs . 1, 2a,2b, (1890).
4) H . O. t:CHENCK: Geol. Soc. Amer., Spec. Paper No.4. p. 78, Pl. 12, figs.
1-15, PI. 13, figs. 4, 7, 9, Textfig. 8, (11 , 14).
-

( 126 ) -

794
Yoldj'a tohtnagai YOKOYA ~[A ; Jour. ColI. Sci., Imp. Univ. Tokyo, \ '0 1.
XLV, Art. 7, p. 10, Pl. II, figs. 12-18.

Locality:-Sekiyu-zawa, Hokuryu-mura.
Geo logical Horizon: -Etaibets dark grey sh ale.
Occw'1'ence : -not so rare.
(3) Venus (Chione ) y-iiznlcai nov. spec. (Pl. 25 (13) Figs. 1,
2, 3,4.)
Holotype :-A left va lve from the Kawa bata Series ; presel"Ved in theImperial Geological Slll'Vey of Japan.
Descr'i ption : -Shell large, heavy, slightly lon ger than hig'h, illequilateral, subtl'igonal in outline. Beaks f 'lirly promin ent, st.rongl y turne ll
inward and forward, situ ated about one-fifth the length of shell f rom theanterjor encl Posterior dor ~al margin long and rather st r ongly convex
in about a third of its length, begining at umbone ; nearly stl-aight
below this. Posterior end mor e acutely rounded than the anterior. Posteroventral margin g ently rounded a nd passes into strongly arcuated ailteroventral margin. Antero-dorsal margin short, strongly excavated in frontof b eak. U mbone 1JToadly rounded at its base. Surface scul ptured by~umerous conspicuous concentri c lines of gTowth and medium-fine closely
crowded radial ribs. Ventra l margin crenated internally. Lunule Ivelldefined, depressed, cordate, as long as high, extending two-thirds the lengthof antero-dorsal margin, sculptured concentricall y only. Escutcheon we11defined as long, narrow a rea which is depressed at more than right angle
to main surface of shell ; surfa ce smooth except fo l' fiDe concentric linesof growth. H inge plate fairly heavy. Ligamental groo ve rather deep.
On lef t valve, poster io r cardinal somewhat elongated, situated on top ofnymph plate; middle cardinal bifid and anterior high, bluutly pointed.
Of the three cardinals of the right va lve, anterior fa irly t hin, sharp
and sma ll; middle feebly bifid, posterior not elongated . .

Dimensions :Length
H eigh t
Thickness
72mm.
65 mm.
44mm.
41
40
19.5
60
?
66
32 ?
52
58
?
33
39
Rerna?'b an d Cornpa?'ison: - Chionl'. is one of t he best r epresented genera in the Miocene of the east. and- wcst coa.t of America9 ) .
It is flot found so fr equently in the Miocene bed.' of our country.
Holotype
Paratype

9) K. ·v. ' V. PALMER; Palaeont. Americana, Vol. 1, (1927).
-( ]27 ) -

Neogene Shells hom the Etnibets Oil Field, I-lokkaid6.

795

The present Dew species has already been obtained from .the Lower
Chikbets Beds of the Chi.kbets Oil-Field: n) Caref~ll examination of thefossil proved that they belong to Venus y-iiZ1dcai and not to V. (C.)
chitaniana (YOKOYAMA). Ven1~s (Chione) chitaniana (YOKOYAMA)1!I)
and v. ' (C.) securis (SHGMARD)11 1 are lower, more equilateral, andhave less arcuate ventral margin. V. (C.) ca?'manahensis (CLARK) I~>,an Oligocene f'pecies , is distinguished from the present species by
its smaller size and its curiou sly elongated : anterior cardinals.
Another Oligocene species, V. (C.) lineolata (CLARK/"J, is lower,
more equilateral, and has no bifid cardinals on the right valve.
V. (C.) ?'ichthojeni (HERTLEIN et JORDAN)14) bas more equilateraland posteriorly restricted shells with more produced anterior
margin. From. V. (C.) en,sije?'a DALL15 ) of the Astoria Miocene Forillation, the present species is distinguished by the presence .of awell-defined escutcheon. The 'middle and the anterior cardinal sof the former are thin and knife-like. Another allied species is
V. (C.) panzana (ANDERSON et MAR1'IN)Jn) from the lower Miocene
beds of California, but its cardinals are much h eavier than thepresent specie:::, the middle of which is always bifid. V. (C.) mcdiost?'iata(CLAlm)17) has two bifid middle cardinals on the right valve.
Locality: - Etaibets, Hokuryu-mura.
Geo logical HO?'i zon: - Etaibets dark grey shale.
10) M . YOKOYAMA; Jour. Fac. Sci., Imp. Univ. Tokyo, Sec. II, Vol. I , Pt. 9,
p . 351, PI. XXXIX, fig. 13.
11) W . H . DALL; U . S. Geo l. Sm·v., Prof. Paper, 59, p. 1\10, PI. 11, fig . B, Pl.
13, figs. 2, B, 9.
U . S. GlUNT and H. R. GALE; Me m. San Diago Roc. Nat. I-li st., Vol 1,
p. 320, PI. 17, fig. 1.
12) B. L. CLARK; Un iv. Calif. Puh!., Bull. Dept. Geol. Sci., Vol. 15, No.4, p
93, PI. IB, figs . 12, 13, 14.
13) B. L. CLARK; Idem, Vol. 11, No.2, p. 150, Pl. 6, figs. 1,2,5.
14) HERTLEIN and JORDA,<. . ; Proc. Calif. Acae]. Sci., Vol. XVI, No. 19, p. G19,
PI. XVII, figs. 4, 7, B.
15} W. H . DALL; U. S. Geol. Surv., Prof. P a per, 59, p. 122.
T . J. E 'I'HERINGTON; Univ. C.llif. Pub!., Bull. Dept. Geol. Sci ., Vo!. 20, No.
5, p. 79, Pl. 7, figs. 4-B.
16) F. M. Al'>'DERSON anr! B. MAR'I'IN; Proc. Calif. Acad. Sci., IVth Ser., Vol.
IV, p. 5B, PI. I, figs. la, lb.
17) B. C. CLARK; Univ. Calif. Publ., Bllll. Dept. Geol. Sci., Vol. H, .No. 2, p
150, Pl. 5, figs. 5, 6, P!. 6, figs. 3, 4.
-(128)-

796

K, KANEr[ARAO CCU'?Ten Ce : -rare,

Explanatioil of Plate 25 (13)Figs: 1-4, V enus (Chion e) y-iizukai nov, spec,'Loc. Shmal'inai, HOl'okunai, I shikal'i and Sekiyu-zawa,
Hokul'yu-mul'a, Etaibet s.
Figs. 1, 2 ( x 1) Holotype,Figs. 3, 4. (x 3/2) Pal'atype.
,Fig. 5 (X 1; A c il t~ (Acilct) aff. g ettys b ~w gensis (REAGAN )Figs., 6, 7. (xl) ¥ oldia (¥oldia ) t o k ~Lnag ai YOKOYAMA

J:t!! 'iil:iV~B't r9ff:!(mli l!liffi1"El:i·.~I\ r.\; f';!::I [:jfu:illt'I' :91:tl'j;lJI1i1>JUilh IJ:1 CD !11! 'i't 1\: W:,j3!t-lt G-n.. 'k PJ,Hc*i=f<7) Jt1t ;r:i~ :j!jitfi-lt G;f~t.:o z1\:~~-1' 0 K *~,~ 22 *111, * m *]ffillf';!: ~P I't a: JlYi;UJ:II"'o fl1Jf:!(nlli
Ie J: 0 :lti!.JllHmjJU f';!: ,T- J: lflJI tli5JUI'iT lk:f!!.N*M,=.;J- :7 N*~:rtH,I'JU ,/ 7' ~ -\"1~«J; lii1!.'l'UEl-Irt, "J-/~--.: V «J;~'tN*Irt, ~t lJ'lH!:P*Irt "t." <O 0 0

m.i:S<jJU llfrlk:f!!.N*Illff';!:i& t 1t;r:i Ie m t nF, *,I/J,1&f';!:~ '? '(' ~ 1I' o :;J(ialT-tl'j; J: ~ 1: tl'jlrc;b t.:'? L,~[:jf*illt 'I' ;:;j l <7) }lllIiir- ihl5J- m~K tlftl'Jt -lt G 0 ;,tm < "(' h '00!'fZ ~ 1\:1ff TrJ -It G;ft. 1.: Ill ;t:fl: J9r~ , ;f.r*H tiiljj(:-It G-n.. M.illk~~,bF 1\: ,it£, f;t'?t::1!NffitxlliliK J!j[<~f.llt l7.:> :i1.a:~ -1'0 o-(129)-

Jont'. GeoI. Soc. Japan , Vol. XLIV, P I. 25 (J3) (KA"EHA1: A)

7

Ogygitoides yabei, a New Species of
Trilobite from the Tsinan Limestoneof Shantung, China

· 46.

By

H.Y. MA(Contribution fi om the Institute, of Geology and Palaeontology, T6boku
I mperia1. University, Sendai, J apan. Received June 11th;
read J ll ue 19th, 1937)

The present article is based on specimens collected by Prof.

IT. YABE and Mr. K. QZAKI from tho Tsinan lim013tone of Middle
OrdoviQian age, west of Poshan CI'tl-hll), . Shantung, China. The
Tsinan limestone is beleived to be correlated with the Chikusan
bed of South Korea and the Black River-limestone of North
America.
At this place I shou Id like . to offer my warmeRt thanks to
Prof. H . YABE and Mr .. K. OZAKI for kindly presenting their:::pecimens to my study, and specially to Prof. H . Y ABE for making
possible the publication of this short note.
Genus Ogygitoides KOBAYASHI, ' 1934
1934

OffY9'itoiclt's KOBAYASm, The Cambro·Ordoviciau F ormations and Faunas ofSouth Chosen. Jour. Fac. Sci. I mp. Univ. Tokyo, Sec. 2, Vol'. 3, Pt. 8~ pp

483-484.

This genus was established by T. KOBAYASHI with the following remarks : " This genus is r ather similar to Pseuclobasilicus
REED, but differs from Basaic'U's law1'owi SCHMIDT, the genotypeof Pse~tclobasi lic'J.ts, in the forwardly tapering.g labella, middle eyes,and steep inclination of posterior limb of facial suture. The
thoracic segments are not so falcated at the lateral extremities. as
in Pseudobasilic'J.lS. By these differences this new genus il3 easily-(130 ) -H.Y. ~bS64

~eparatodfrom Pse'uclobasilicttS. These criteria also imply that
Asaphtts nobilis BARRANDE and Asaphus ingens BARRANDE may
be more suitably grouped in Psetulobasilicus than in Ogygitoicles."
KOBAYASHI also states that Isoteloicles of RAYlIIOND is similar
to Ogygitoicles in general form, narrow axial lobe, obliteration ofribs and fur,rows,. ·and in th<;l presence of. ,the ,margipal bOl:der ou
the cephalon.
,a nd" r .p ygidium,
but , it~ is distinct il.l th e~ l eature of. "..
,.
the glahella, ' which is marked merely with subparallel dorsal
furrows without anY '· dl~al' divisIon into ah'terior and posterior
lobes as in Ogygitoicles. The glabellar outline of Isoteloicles approaches more to Pswclogygites than to the present genus. The
generic characters are g iven ,below.
Diagnosis :-Entire Fi hield smooth, elliptical, convex. Cephalon
and pygidium large,- nearly of. eqllallength. Glabella subsphaeri·cal, tapering forwal'dly, its furrows narrow, faint; occipital furrow
shallow, distinct. Pregiabellar ai'oa wide, concave border wide,-defined, usually upturned. Fixed cheeks mode~'ately wide. Compound eyes large, situated medially. Facial sutu.r es isoteliform.
Frl3e cheeks rather large, long , with lon,g .genal Fipines.
Thorax wit,h 8 segments, axial lobe slightly wider than 'pleural·ones ;. apices of pleura recta:qgul:;tr .
.' . Pygidium semi~ovate; axis sha~'ply tlefined by dorsal furrows,
tapering . back rapidly; axial and pleural furrows faiut, margl11al~order wide, usually depressed below pleural lobes.
Genotype :-Ogyg.itoicles mymoncli KOBAYASHI
Ra1~ge:-Middle OrdoVician
In the present collection of fossils from Shantung; Chil.1a, isfound a cast of the 'shield of it Trilobit~ . with its cephalon faintly
preserved, and the left pleu,ral lobes of the thorax and pygidium·c rush ed. This specimen evidently represents a new species, forwhich the following is proposed.
l

I

,

•

\

,

't

'

Ogygitoicles yabei MA, n. sp.'

- PI. 29 (14), Figs. ·1-4.
".Des~ription ;- Entii'e shield eHiptical. quite convex. Cephalon andpygidium of nearly equal size, semi-ovate in outline. Glabella subspherical, moderately wide, hardly convex; dorsal and glabellar fUlTOWS shallo:w. and faint. Occipital furrow weak. Pl'eglabellal' area narrow. Fixed-('1.31)-

Ogyg'iiuid,'s yabei, a Nelv i::ipecies oi Trilobit e

865

cheek with two large anteriol' and posterior limb's at each s'ide. F acia lsutu res isoteliform (?). Eyes semi-circular, modcrat e in size, situatedbehind middle. Free cheeks broken.
Thol'ax of 8 segments, convex . Axial lobe wide ; articu lated h alf
rings distin ctly marked on fifth and sixth r ings. Pleural a pices rectangular , its grooves an'a furro\\'s nar row, defined .
P ygidium subtl'ial1g'ular, .strongly conveJ,;:" P ygid ial s eg111ents faint.
Axis st rongly tapering back, well marked by ·d or sal ful'l'ows . Plcurallobe: steeply inclinin g to margin; marginal bor der wide: Sul'iace smooth.
Dimensions : - L ength of entire shie ld
ca. 13.2 cm.
L ength of cephalOl1
47.0mmLength of thorax
35.0 II
50.0 1/
L ength of pygidiulll
28.0 II
Width of axial lobe
23.0 II
Width of p leural lobe
W idth of marginal border
8.0 1/

Compm'ison: -Compared to Ogygitoicles 1'aymoncli KOBAYASHI,
the present species has a widcr and less convex g labella, weakerglabellar and dorsal furrows, faintcr occipital furrow, narrower
prcglabellar area, 'wider axial lobe of thorax, with articulating half
rin gs marked on the fifth and sixth rin gs, pleural lobes morestrongly convex and more steeply inclin ed to margIn, pleuralgrooves defined, and the pygidium is subtl'iangular in outline.
FO?'mation and Locality :- Middle Ordovician, Tsinan limestone,
cast of the Yiauchiayu (M~ %JiIm fault, west of Poshan (\UhLI), Shantung, China. Collected by H. YABE and K. OZAKI.
I-Iolotype: - Preserved in the collection of the I nstitute ofGeology and Palaeontology, Tohoku I mperial University, Sendai,
J apan. R eg. No. 61430.

.~~!
~I~ - :;,.\- ;.-..:z.. '7 r1"t'/.;J.. '7!t\:*fH<:1l1Itl:'d~1ku~ iT~ IIr.~f{tZ1:T{I~rl"l~lIlJ;'\ :Hc1t~ "C 11.I *tfl jJ.~tl.li cD im ' ~IJj'tf\li't\llJrJlj- :o * J: ~ f~~
.

T'J ~

L..~H: ;f1.;?, 1 :::'.'il~,ff.Ht;fi ~ ;j.'j!j3'E-lt L.. Ji.!i;, Jlt fj','p l>:fi j'i'jE!¥'>P Ji:!}/.;I*c*i'&~ 11.1 Millf CI) Ogyg-itoidesI!!;) v.: TYrMj -t;?, t CI)~C L.. "C, J1:tilm")t14;;.tf.ill. O. j'aymoncl'i KOBAYASHI ,!: filiJflfJc1kV: <I'ijilfJ".:>
9 Hf~!: 4'r.M:~ ") l!:li v.: 1l\"C ftii<JlIJ l~;?' ~.!!./, "C jJfrf!ll c W~,CO b ~L , :tl v.: Ogygitoide.1 yabei MACI) ;:f;ir,g ~ r;fH.t:: ~ifiJ;Jt·CI) 1t;fi~ -&.- tr r!.ii· fii~ iiWi¥i;fi1;t(%vJ: ff.j &i't*i'&~ I.L"!T ~lE v.: ~t* Black0-( 132 ) - -H. Y.MA$66

River limestone (c;l\\t Jt IA~ 0 I: ~ 2: ~ t:: t::: 0 t rD t.. ~0. Explanation of Plate 29 (14)Og ygitoides yabei 1\1JA, n. sp.

Fi g . 1.
Fig . 2.
Fig . 3.
Fig. 4.

Weathered surface, dorsal view. of cast. Nat. size.
Restomtion, dorsal view, showing the entire shield. X 3/ 4.
The same, right side view. X 3/4.
Profile of the test.
(aa'): Basal width of cephalon.
(bb'): Posterior width of thor ax .
Middle Ordovician: In Tsin an limestone, east of Yiaochiay ti Fault,
West of Poshan, Shantung, China.

-( 133 ) -J our. Geol. Soc. Japan, Vol. XLIV, PI. 29 (14) (R. Y. MA)/,""""-::---=-.. . .-. . .- . . .
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2

47. ' .Jurassic Er~r::t Stumps .unearthed at

the Court of the 77th Regimentof Heizyo, Korea
By

Misaburo SHIMAKURA(Read Jun e 19th; received June 25t.h, 1937)

I n September 12th, 1936, two large erect pctrified ,'Lumps. were unearthed at the court of the 77th R egiment of H eizyo,
Korea (T)7osen ) (Fig. 1). The writer r eceived from Mr. Masaru
KUROKI, Teach er of the Heizyo Middle School, one piece of petrified woodfrom each of these stumps.
The specimens are grayish-brown ,measur ed about 20 cm long, 2 x 3 em
broad. ' The tissue is generally illpreserved, although the wood-gr ainsand growth r ings are visible to theu)~aided eyee. Tl~e wood is composedof only traeheids and ra.ys; it is free Fig. 1. A e rect petrified stump of
Ph'!Jlluclaclo.r'!Jlon heizyoense SErBIA-

from r esin canal and wood parel1 - K UHA unearthed at the cour 4 of thechyma (Fig. 2). The border ed p~ts 77 RegilIll'nt of I-I eizy6. (M. KU1'Ok-i
on the r adial walls of early wood photo. )tracheids are circular or oval, separ ated one anoth er, and arranged
in one or two rowf', opposite when in two rows (Fig . .3). The
tangentia.l border ed pits of, late wood tracheids ar e not clear owing
to ill-preservation of cell-walls. The crassulae are present on theradial walls of early wood tracheids. The r ays are always uni'seriate, and parenchymatous; both tangential and horizontal wall s
are thin and smooth, lateral walls have one, rarely two, large oval
or oblong simple pits in the fields of early wood; one, oval or
lenticular pit is in these o,f late wpod.
From the foregoing structural featur e:o, it is evident that thisconiferous wood belongs to PhyllocZadoxylon GO'l'HAN' ). Since this1) W . GoTHAN:

Abh . k. Preuss. Geol. Land. (N. F.), XPV, 1905. p. 55.
- - ( 134 ) - '868

H . SHIM,IRuRA

Phylloclctcloxylon he izyam~se Smil-rAKuRA, Fig. 2, a transvp.s e section of thewood, x ea.. 35; Fig. 3, a r adi a l secLion of the early woo d, x ca. 100.

genu s was instituted by GOTH AN in 1905, five species have been
assigned to it, they . are, Phyllocladoxylon 111iille?'i (SCHENK)1), Ph.
anta?'c tic~~rn GOTHAN~), Ph. ebo1'acense (HOLDEN)3), Ph. Gothani(STOPEst, and Ph. heizyoense SBIMAKURA"', bei3ides tbree indeterminable species are r ecorded by GOTEIAN(;), THoMAs7), and SHD1AKURAS). The present specimen is identical in every r espect with
Phyllocladoxylon heizy8ense SRIMAKURA, which is only species of
the well known Jurassic for est at ~he court of the H eizy6 Middle
School.
1) SCElIMPER & SCHENK: in ZITTEL, Hapdbucb d. Palaeontologie., V, 1890,
p . 873.
2) W. GOTHA"'! : Wiss. Ergeb. Schwed. Slidpolarexp., 1901-]903, III, ]908, p .
4. A. C. SEWARD: Foss il Plants, IV, 1919, p . 210. R. KRAUSEL: Arldv f. Bot.,
XIX, 1924, p. 5.
3) R. HOLDEN : Ann. Bot., XXVII, 1913, p. 536.
4) M. C. STOPES: Cat. Mes. Plants, Brit. Mus. The Cretaceous Flora II,
1915, p. 228. M. SaUfAKuRA: op. cit .. 1936, p. 285.
5) M. SmMAKURA : Sci. Rep. Tahoku Imp. Uniy." Sel'. 2, XVIII, 1936, p. 281.
6) W. GOT.lliIN : Kg!. SYensk. V etensk. Acad. Handl., XLII, 1907, p. 9.
7) H. H. THOMAS: Mem. Com. Geol. St. Petersburg . (N. S.) .Liv!'., LXXI,
1911, p. 80.
8) M. SmMAKuRA: Sci. Rep. Tahoku Imp. Univ., Ser. 2; XVlII; 1936, p. 287.
-

(135)--

Jura ssic E l'ed Stumps fr om Heizyo

839

According to S. Knv.As4KI 1), the. Mesozoic Formation of
H eizy6 district, the 'Daid6 FOl'luatio.n ', is divisible into threeparts from ~tratigraphicai a~d pala~ontologi~al points. The upperdivision -was correlated ,,,ith the W ealden ' Formation: of 'Europe
by KJNOSAKI. Middle division is exposed in H€izy6 City ana its
suburb~, and has plant r em.ains and also often Cyrena in its
upper horizon ; the fo ssil for est in the court of the H eizy6 Middle
School and at the foot of Botandai on the right bank of theDaid6k6 belong to this division. ' The present writer~) foundX enoxylon latipo?'os7mi (CRAMER)GOTHAN from the quarry · of-Botandai, and X . phyllocladoides GOTliAN from the · ballk of the
Daidok'6: T he new find of Phylloclado:-cylon heizy(j~nse SHIMAKURA
at the · court of the 77th Regiment of ' H eizy6 n1.3,y suggest th at
the Ji.1l'assic forest of H eizy6 had a wide extention·.
In conClusion, the writer ' wishes to express his sincer e thal~ks
to Prof. "'H . YA BE of th e T6hoku I mperial Univ('I'slty, for his kiJidguidance . .

Iffl'fll 11 frF fj)']

12 f:I,

21~Wfi1fi 77 ~t~~%,IE;/)I ~Jf 'I'

2 f';kCDrli:il~1t1:if9J~?;6;ElJt ~ t.l- ,~rt iHj:2r;.tii);r.p J'f,!;f:ltv ¥.I~*~J:\; J: V k CD ~;f;jS~ ~it1 Pt.l- 'k a JIt ~lJ;CDi~iH' ~j{f-:::> "(~~.i" t.l-I';[,. ~>J;i:13: crjn!(~HIlf Kf'j: llill)I§CD1fI$%;.:jUJl:j' 1- 2 3iIj K~Hlk K I!i~3i1j L. , !/ '77,: v - t 1jI~1IP., tl;J-rJlfdj!
(7)11-:$H'I':'Cf'j: 111Mf,jf;K 211617.)* ~ t.;:llilIlf.H.'J3:iKf{!;WlHl§ cq71 ;t~ - v/' (E i-po ren) il'''''~a
Q:*III}J@11f;:V:KfMlllriill:l:tt.r V'a JIt ~lJ;CD:jjIf.:ilil:t 21~~'I'b}!;{:}.(C1)1fti t.r 1t1:i~ ~ :jjIi !iX L.. "( if,;, ~.f1ttc:~~ < flil-~'<b ~;6> ~, ;>fi:~;f*;~ ~ Phylioclaclo:rylon heizyoense SIII~[A KURA fC I"J5i:: '3l- ~ 0 lit

C1) ffrMt :zpm<D1t 1:if!' 1:t r.p ,!f~;{:}.( C?).ij- t.r 6 ·Yt -:::> C}llfv'ffi1i!ll!lrte:][-:::>"( 7fr-;{£ L.. "(if;;,t=. t 11.,) c5!J
; ..... 6t.l-~ a'{f.i} ':::' I1.).7C J-;., J1;1; <1.)/J,X ~ qa.:p;{:},(UIn~ ~ ~1- t::: :?<:Y(15)t;il~, ]f(V:1;f~~~ HijJfz1 l~frF ~ t.l- t::: ,'~ *JY,(j'\; K

i* < [f;jj4t-t ~ al) S. KAWASAKI: Bul l. Geo !. Surv. Korea, IV, Pt. 1, 1925, p . 2-R.
2) M. SUHU KURA : J our . Geol. Soc, J apan, XLI. 1934, p. 10.

-( ]36 ) -

870

Proceedings of the Plaeont ological Society of Japan
iPd'f1i 13*

6 Jl 19- F-J*

K: 1'.,4 < (~1J/1;Jf ~6 ~)o ~ll'titii;Jf:;lfi. K:ii~iiii.\l1 §v :f,Ln L.. ..
A Pliocene Ell'h'idillm h om Japan. (fl:llit)
Younger Palaeozoic Fossils from 1.he Toriasi' mrirmtnin-b:ocklbaraki Pl-efecirue.

Ki.yosi ASANO

H aruyosi HFJrMOTO a nd Hisashige HAT,\ KEYAMA

On the Ordovician Cli~ate ot" Northern Hemispbere deT . Ying H. MA

duced from the Gro'l;ill Rate of Tabulate COl·als.
~ ~V,\f.1~ill-*EEj!ftt)ifi!!:JI, 1t ;r.

sJ);

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Nuettlanas from the Up per Ml'lsasino Formation; Japatl.

KoHi SCZUKI

Pleistocene Mollusks of Manchoukuo .

K6iti Sl:Z UKI

.*

Ji111

Wi ~ Ilf:l1!!. -FEE Hi ID Jl,1t;r.

it

Pliocene Shells from the Toshio Oil Field, Holdmiclo.

Kinji KA NEFlA RA

On Som e Neogene Shells from J apan (Part n~~if,Hill:7tiWJjljjdl

1J.1-

Kinji 'KANE FlARA

mIDJI,1t;r.

{i£"~~mjtl]laF'iif#§ 1D Jl,1t. = , :=.

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Saitel'ell(t conulata CLARK l'C:ffX II'--C

tl'

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~

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P olicleiJ1n'ia sanaliWfaia LORENZ, an O.rco\-ician Actinocero id

Cephalopod. (fl:fil)Curt TEICIIERI'

L ophospim c Pagoclispim f'C 1iX II'--C

;J,

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tf

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1'111

On aNew Species of ' Siomopneutes Iro~, th e Eocene of Ha hazima

Sy6zo NISIY.!H1A

Ogyg'itoides yabei, a New Species' of Tri}obihis from Tsina n

Limestone of Shantung, China. (f \;fit)

H . Y. lVIA

Miscellaneous Fossil Vertebra't es from Mongolia.
Jurassic Erect Stumps unearthed lot t he Court of the 77(.bRegiment of H eizyo, Korea. ({-l:i'.1'O

Fuyuji TAKAt
MisabuJ'o SHTMAK1JRA;;j;:iI'll lDmI;9{Ii'~1 K:.g-1.;f1. --C db :01Y.J:*,mff/utf11t.;rr Q),TW'k C~

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Constitution of the Palaeontological Societyof Japan.
Article 1. The Sociel.y shall be known as the Palaeontological Society of Japan .
It forms a section of the Geological SOciety of Japan.

Article 2. The obj e c~ of th e SOCiety is the promotion of palaeo ntology and related sciences.
Article 3. This Society to execute the scheme out lined under Article 2, shall holdannual meetings and discussions.
Article 4. Proceedings of the Society and articles for publication siJall be published through the Journal of the Geological Society of J apan. Separa tes and circulations will be sent to members of the PalaeontologicalSociety who are no~ members of the Geological SOCiety of J apan.
Article 5. The annual du es of this Society is two dollars for t.he foreign membersof the Societ,y.
Article 6. This Society sball hold the following executives. President one person,
Councillors several persons.
Article 7. The President and Counc illors shall be elected annually. T he President and Councillors shall be elected from the Society body by voteof its members. All elections shall be ballot.

P r esident

Shilltaro NAKAMURA

Councillors Ichil'o HAYASAKA

Hal'uyosi HUZIlIWTO*

Ts unellaka IKI

Kinosuke INOUYE

Nobuyasu KANElIARA

Takeo KATO

Rokuro KIlIIURA

Teiichi KOB AYASH I"

Hanzo MURAKAMI

Takumi N AGAO

Shintaro NAKAMURA 'Tuneteru OINOMIKADO*

Ichizo O~IURA

Yanosuke OTUKA"

I wao T ATEIW A

Shigeyasu TOKUNAGA*

Hisakutsu Y ABE

Shinji YAMANEA(* Executive committee)

All communications relating to th is Journal should be addressed to t he
PALAEONTOLOGICAL SOCIETY OF JAPAN

Geological Instit ute, Facult.y of Science, Imperial University of Tokyo, Japall