bluuebunny/crossref_metadata_2025 huggingface dataset:
Tubicolous polychaetes as substrates for epizoic foraminifera
Authors: Langer Martin R. , Bagi Harmeet
Published: July 2010

Abstract. Associations of epizoic foraminifera and invertebrates are widespread and have been reported from polar to tropical and shallow to bathyal environments (Zumwalt & DeLaca, 1980). Their fossil record stretches far back into Palaeozoic times as documented by agglutinated foraminifera attached to crinoids in Silurian and Devonian reef deposits of Morocco and Gotland (Franzen, 1974). Strong preferences for filter-feeding hosts suggest that epizoic foraminifera benefit from increased nutritional resources accumulated in the immediate flow microhabitat (Langer & Long, 1994).In the course of a broader study on foraminifera/invertebrate associations, several hundred foraminifera attached to the outer wall of agglutinated tubes of various polychaetes (e.g. Sabella sp., Potamilla sp.) were collected from sediment samples dredged at 61 m depth off the University of California, Moss Landing Marine Laboratory (NW Pacific). Attached foraminifera display a remarkable mode to obtain and differentially cement grains from the host tube that previously has not been reported. Agglutinated polychaete tubes and fragments thereof may reach 2 cm or more in length and are composed of fine sand, silt and micas cemented together by secreted organic material (Fig. 1). Tubes are typically orientated vertically in the mud and project above the sediment surface into the water column.NEW OBSERVATIONSExamination of agglutinated polychaete tubes revealed that their outer walls were commonly colonized by one to three foraminiferans (Figs 1–3, tube diameter 1.5–2.0 mm). The epizoic foraminiferal fauna comprised exclusively agglutinated taxa and included the following species: Alveophragmium advenum (Cushman), Textularia abbreviata Lalicker & McCulloch, Textularia schencki . . .
An annotated check-list of British Pleistocene, Holocene and modern freshwater ostracods
Authors: Griffiths H. I. , Evans J. G.
Published: July 2010

Abstract. A revised check-list of British Pleistocene, Holocene and Recent freshwater ostracods is given, and notes provided on the taxonomy and occurrence of some rare and newly-reported species. Stenocypria fischeri (Lilljeborg. 1883) and the hypogean species Pseudocandona cf. eremita (Vedjvosky, 1882) and Pseudocandona breuili (Paris, 1920) arc reported from Britain for the first time.
A simple cost-effective infra-red microscope for palynology
Authors: Marshall J. E. A.
Published: July 2010

Abstract. It has long been known that objects which are opaque in transmitted white light can become translucent in infra-red (IR) light. Its application to palynology was shown by Leclercq (1933) who used an IR filter to cut out the visible light from the specimen coupled with an IR-sensitive film to capture the image. Although the significance of this development was recognized (Walton, 1935), it was never generally used since oxidative methods such as Schulze’s solution are normally successful in clearing exines. The exceptions are opaque palynomorphs from thermally over-mature rocks. Such assemblages have been studied with IR microscopy using either IR-sensitive film on partially cleared material (e.g. Tiwari & Schaarschmidt, 1975) or electronic IR imaging systems (Cramer & Diez, 1972).The technical sophistication and performance of IR imaging microscopes has recently improved significantly following their routine application for the internal imaging of silicon chips. However, such microscopes are designed for use in reflected light and also rather costly. In addition their design makes them difficult to routinely switch from brightfield transmitted light to IR light without risk of damaging their sensitive IR tube. This note describes a simplified IR microscope for transmitted light which shows how excellent images of opaque spores in the near-IR can be produced using the simplest palynological microscope.This IR microscope is based around an Olympus BHSM-IR system. This is fitted with a 100W quartz halogen bulb which is essential for providing the required level of IR illumination. However, the only specific IR corrected optics this. . .
Alanlordia, a new genus of acervuline foraminifera from the Neogene of Indonesia
Authors: Banner F. T. , Samuel M. A.
Published: July 2010

Abstract. Samples from Neogene limestones of the Indonesian islands of Nias and Tuangku, west of Sumatra, have yielded assemblages of foraminifera which include Alanlordia niasensis niasensis n.gen., n.sp., in the Late Pliocene, a new Acervulinid which grossly homeomorphs the Maastrichtian Vanderbeekia of the Middle East, while the Serravallian limestones contain the ancestral A. niasensis primitiva, n. subsp., and the deeper marine and morphologically simpler A. banyakensis n. sp., which grossly homeomorphs Wilfordia of the Eocene.
Digital imagery for making plates
Authors: Scott George
Published: July 2010

Abstract. Although the resolution and depth of focus provided by scanning electron microscopy (SEM) revolutionized the examination of several groups of microfossils, conventional photographic techniques are normally outlined in instructions for preparation of micrographs for publication (Whittaker & Hodgkinson, 1991). While the quality of results attainable by following these methods is very high, digital image recording and processing techniques are now well developed and readily available. This note outlines some advantages of digital techniques in the preparation of SEM images for publication.DIGITAL RECORDINGSecondary electron and other detectors attached to the SEM produce analogue (waveform) signals. In early instruments only these analogue signals were processed and displayed. Modern designs quantize signals from the detector as pixels (picture elements) which represent grey levels along scan lines. Pixel information is processed by the SEM on-board computer and saved as an image file. Importantly, the basic hardware to convert the analogue signal to digital form is simple and can be readily retro-fitted to early instruments. Our Philips PSEM 500 was adapted to record 128 grey levels at 800 pixels/line over 600 lines/frame, a minimum specification for professional work. Many micropalaeontologists will find that their SEM laboratories can supply digital files at higher resolutions. However, an essential point is to work with images recorded digitally directly from the SEM video channel, so avoiding potential degradation due to scanning of images recorded on film from the SEM monitors.DIGITAL PROCESSINGI use Photostyler (a PC image editor by Aldus Corp.) for plate composition. It resembles. . .
Dinocyst distributions and stratigraphy of two Cenomanian–Turonian boundary (Upper Cretaceous) sections from the western Anglo-Paris Basin
Authors: Tocher Bruce A. , Jarvis Ian
Published: July 2010

Abstract. The dinoflagellate cyst distributions and stratigraphies of two representative Cenomanian/Turonian (C/T) boundary sections from the Maine and Normandy regions of northern France are described. Siliciclastic-rich sediments which characterize the Upper Cenomanian in Maine, contrast with the coeval nodular chalk and hardground lithofacies of Normandy. Both areas display a transition to marly chalks in the Lower Turonian. Dinocyst assemblages are characterized by low diversities (38 taxa) and low overall abundances, and relatively few stratigraphically significant species. The continued occurrence of Epelidosphaeridia spinosa (Cookson & Hughes) Davey in the Upper Cenomanian of Maine is noted. Results are compared and contrasted with those from coeval sections elsewhere in the Anglo-Paris Basin. A major decline in cyst abundance and diversity is typical of the C/T boundary interval, which is characterized by a dominance of tolerant cosmopolitan forms such as Circulodinium distinctum (Deflandre & Cookson) Jansonius, Hystrichosphaeridium bowerbankii Davey & Williams, Oligosphaeridium complex (White) Davey & Williams, Odontochitina costata Alberti; emend. Clarke & Verdier and O. operculata (O. Wetzel) Deflandre & Cookson.
Lithofacies-influenced ostracod associations in the middle Ordovician Bromide Formation, Oklahoma, USA
Authors: Williams Mark , Siveter David J.
Published: July 2010

Abstract. The Bromide Formation of southern Oklahoma was deposited in a linear basin and on the adjoining platform during a marine transgressive-regressive event in the middle Ordovician. The formation displays wide lateral (platform-basin) and vertical (transgressive-regressive) sedimentary facies variation. From the prolific and diverse ostracod fauna present in the Bromide Formation two lithofaeies-related ostracod associations can be defined: a geographically and stratigraphically widespread Anisocyamus Association, occupying subtidally deposited marine sediments: and a Leperditella Association, which is restricted to marginal marine environments. The ostracods of the Bromide Formation demonstrate that the group can be utilized in the Ordovician as a tool to help establish palaeoenvironments and differentiate palaeoshoreline.
A Late Palaeocene–Early Eocene benthic foraminiferal record from Bovlstrup, Denmark, showing a remarkable agglutinated fauna
Authors: Laursen Gitte Vestergaard , Andersen Søren Blegvad
Published: July 2010

Abstract. The Bovlstrup well, Denmark, provides a detailed record of benthic foraminifera from the Upper Palaeocene and Lower Eocene deposits. The investigated interval spans four litho-units: an informal Grey Clay unit, the Holmehus Formation, the Ølst Formation and the Røsnæs Clay Formation (Danian?–Ypresian). Five interval zones based on benthic foraminifera have been established. Three of these zones (Zones 2, 3, and 4) contain exclusively agglutinated faunas. No foraminifera have previously been found in the Ølst Formation (Late Thanetian–Early Ypresian), but at Bovlstrup the formation contains a remarkable low-diversity agglutinated fauna (Zone 4). A programme of relatively dense sampling yielded information that may be lost in commercial oil well analysis. The five foraminiferal zones at Bovlstrup are correlated to established North Sea zonations, and the recognition of the faunas of Zones 3 and 4 leads to the conclusion that the zonation of King (In: Jenkins, D. G. & Murray, J. W. (Eds), Stratigraphical Atlas of Fossil Foraminifera, Ellis Horwood, 1989) can be refined.The benthic faunas indicate changes in the bottom environment both at the sea floor and within the overlying water mass. A transition from a calcareous fauna to an agglutinated fauna is interpreted as the result of a change from a neutral to a slightly acidic environment at the sea floor. There is a fluctuation in water depth through the studied section with a minimum water depth during the Thanetian and Early Ypresian. Volcanic ash layers in the Ølst Formation presumably resulted in low pH values, thereby causing the extreme low diversity of the benthic foraminiferal faunas.
A new genus of Devonian Ostracoda
Authors: Orlov Aleksandr N.
Published: July 2010

Abstract. Baritella, a new genus of Ostracoda, is described from the Devonian rocks of Timan–Pechora province, Russia. This genus belongs to the superorder Podocopamorphes Kozur, 1972, but its systematic position is not clear. Three new species belong in Baritella: B. tkatchevae, B. dmitrievae and B. pavlovskajae. All these species were found in shallow-water deposits of the open sea.
The depth distribution of recent marine Ostracoda from the southern Strait of Magellan
Authors: Whatley R. C. , Staunton M. , Kaesler R. L.
Published: July 2010

Abstract. From 16 sediment samples collected from the Chilean part of the Strait of Magellan, 2338 Ostracoda were recovered. These represent 61 species belonging to 45 genera and 16 families. Previous work in the Tierra del Fuego Province has shown the faunas to be highly endemic, resulting from the relative isolation of the region and its particular climatic and oceanographical characteristics. The fauna of the Strait of Magellan is similar to those previously described with one notable exception: the occurrence of deep-water, psychrospheric species at shallow depths. Species of Bradleya, Agrenocythere, Poseidonamicus, Bythoceratina, and Legitimocythere, usually recorded from bathyal to abyssal depths of more than 1000 m, were found together in the same samples with a typical, shelf fauna. Such unusual depth distribution of psychrospheric species may have resulted from the extremely cold temperature and low salinity of the water in the southern Strait of Magellan, coupled with the upwelling of cold, deep water masses.
A new species of Somalina (Somalina hottingeri) with partially vacuolate lateral walls from the Middle Eocene of Oman
Authors: White M. R.
Published: July 2010

Abstract. Somalina hottingeri, a new species with partially vacuolate lateral walls is described from the Middle Eocene of Oman. It is distinguished from the only previously recorded species with this wall structure (S. transitorius (Hottinger)) by having equatorial chambers that are relatively low throughout the test. On the basis of this character, it is suggested that S. hottingeri evolved from the Opertorbitolites douvillei Group (redefined here) and that it gave rise to the true somalines. S. transitorius is regarded as arising from O. latimarginalis (ex. O. latimarginalis Group, introduced in this study) but not to have given rise to any other species.Since forms of Somalina with only partially vacuolate walls appear to be confined to the late Early Eocene to early Middle Eocene, it is concluded that the presence of this wall structure provides a useful stratigraphic marker.
The genus Krithe (Ostracoda) from the Campanian and Maastrichtian (Upper Cretaceous) of the northern US Gulf Coastal Plain
Authors: Puckett T. Markham
Published: July 2010

Abstract. The ostracode genus Krithe is one of the most common genera in the Upper Cretaceous (late Santonian to Maastrichtian) deposits of the northern Gulf Coastal Plain of North America. Although it is never abundant, the genus occurs in sediments that were deposited under a wide range of palaeoenvironments, including nearshore sandy marls to offshore, nearly pure, chalk. The taxonomy of this taxon has been problematical, and what is herein considered to be a single species, K. cushmani, has been referred to in the literature under five different names. Two morphotypes were observed: relatively large individuals with ‘mushroom’-shaped vestibules collected from chalk, and smaller individuals with pocket-shaped vestibules collected from nearshore deposits. Species of Krithe have been hypothesized to be useful in estimating dissolved oxygen concentration in ancient ocean floors, based on details of their morphology. Whereas the relationship between size and environment corroborates with previous predictions (larger individuals live in deeper water), the morphology of the vestibules contradicts predictions (the larger vestibules occur in the nearshore deposits and the smaller, more constricted vestibules occur in the chalk). A causal relationship between environment and morphology is discussed.
Oligosphaeridium junctum sp. nov. A Hauterivian dinoflagellate cyst from the North Sea
Authors: Bailey David , Loy Anthony
Published: July 2010

Abstract. The new species Oligosphaeridium junctum is described and illustrated from sidewall core samples in UKCS Well 15/29b-4Z. This species is considered to be an extremely useful stratigraphic marker in Hauterivian aged marine sediments of the North Sea.
Upper Wenlock to Lower Přídolí (Silurian) conodont biostratigraphy of Saaremaa, Estonia, and a correlation with Britain
Authors: Viira Viive , Aldridge Richard J.
Published: July 2010

Abstract. The closely related conodonts Ozarkodina bohemica, O. snajdri and O. crispa form a clade that provides useful biostratigraphical indices through the upper Silurian. Collections from boreholes and surface outcrops on Saaremaa and from a borehole at Kolka, Latvia, contain new morphotypes of O. bohemica and O. crispa. A new subspecies, O. snajdri parasnajdri, is also distinguished, occurring above O. crispa in the Kuressaare and lowermost Kaugatuma stages. Evidence from conodonts and other fossils, primarily chitinozoans, ostracods and ichthyoliths, can be used to correlate the upper Silurian succession of Saaremaa with those of the Welsh Borderland and Gotland, although some problems remain to be solved. The microfossil distribution suggests that there may be a major break at the base of the Ludlow Bone Bed Member at Ludlow, equivalent to the Kuressaare Formation on Saaremaa.
Palaeogene triserial planktonic foraminifera
Authors: Jenkins D. Graham , Whittaker John E. , Curry Dennis
Published: July 2010

Abstract. Triserial planktonic foraminiferal species from the Palaeogene are classified into the Early Danian Guembelitria, with pore mounds on the test surface, and the Early Eocene-Late Oligocene Jenkinsina, which are also microperforate but lack pore mounds. The stratigraphic and palaeogeographic ranges are discussed, the holotype of G. cretacea Cushman (the type species of Guembelitria) is re-illustrated, and neotypes designated for G. danica (Hofker) and Jenkinsina triseriata (Terquem). Chiloguembelitria is shown to be a junior synonym of Guembelitria.
On the evolution of the Hedbergellidae from the Praehedbergellidae
Authors: Boudagher-Fadel M. K. , Banner F. T. , Gorbachik T. N. , Simmons M. D. , Whittaker J. E.
Published: July 2010

Abstract. In order to establish the relationship between the smooth, microperforate praehedbergellid forms of the genus Blefuscuiana with the younger, macroperforate and muricate forms typical of Hedbergella, two similar taxa but with the different characters of the two genera, are studied here: Blefuscuiana praetrocoidea (Kretchmar & Gorbachik) and its descendant Hedbergella trocoidea (Gandolfi), the type species of Hedbergella, and which typifies the Hedbergellidae.B. praetrocoidea was only found in the Early Aptian in the North Tethys. H. trocoidea ranges from the Late Aptian to Early Albian (?M. Albian) and is a cosmopolitan species. It evolves into Ticinella roberti (Gandolfi), a Late Aptian–Albian species with fused portici. The evolution of the Praehedbergellidae into the Hedbergellidae appears to be related to a relative sea-level rise in the Late Aptian and Albian (and the opening of the Proto-Atlantic) which provided a number of deep-water niches which the Hedbergellidae occupied.
Foraminiferal distribution and palaeoecological interpretation of the Eocene–Miocene carbonates at Al Jabal al Akhdar (northeast Libya)
Authors: Abdulsamad Esam O. , Barbieri Roberto
Published: July 2010

Abstract. In the coastal area of northeastern Cyrenaica (Libya), the excellent exposures of Cenozoic limestone sequences of Al Jabal al Akhdar average around 1000 m in thickness and allow detailed stratigraphic investigations to be undertaken. This study of the biostratigraphy and depositional environments has been augmented by an analysis of the microfacies and of matrix-free foraminiferal assemblages. The biotic contents of the microfacies provide a good tool for correlation with the Letter classification developed from the Indo-Pacific region. The palaeoecological significance of the biota has been evaluated by comparison with the ecological requirements of their present day counterparts. Limitations for the palaeoecological interpretations are mainly due to the inadequate relationships with existing ecological data sets and to some local bias in fossil recovery because of some unfavourable lithologies. In the investigated Eocene to Miocene shallow marine carbonate succession nine different microfacies and sub-microfacies were distinguished through depositional texture and biotic components. Wilson’s standard carbonate facies belts, integrated with present day foraminiferal distribution models, have been used for reference in microfacies analysis and description. Most of the microfossils present are foraminifera and a total of 150 taxa, including larger, small and planktonic foraminifera, have been recognized and their stratigraphic and palaeaeocological distribution reported. Physiographically, the rock sequences investigated are referred to a shelf–carbonate platform complex, in which the depositional environments range from open shelf to restricted platform conditions. The nature and distribution of the foraminiferal assemblages and related biota, in association with sedimentological evidence, indicate a generalized shallowing upward trend in which several bathymetric oscillations, especially in the Oligocene, are reported. These reflect the interplay between local tectonics and large-scale eustatic changes.
Possible fossil ostracod (Crustacea) eggs from the Cretaceous of Brazil
Authors: Smith Robin James
Published: July 2010

Abstract. Spherical objects recovered from the acetic acid preparation residues of vertebrate fossils from the Santana Formation (Lower Cretaceous) of northeast Brazil are postulated as the eggs of the ostracod Pattersoncypris micropapillosa Bate, 1972 (Ostracoda). These spheres are phosphatized and range from 85 to 110 μm in diameter, and are comparable in many respects to the eggs of several Recent ostracod species.
New calcareous dinoflagellates from the Palaeogene of the South Atlantic Ocean (DSDP Site 357, Rio Grande Rise)
Authors: Hildebrand-Habel Tania , Willems Helmut
Published: July 2010

Abstract. The new calcareous dinoflagellate taxa Bitorus truncus n.sp., Calcigonellum ansatum n.sp. and Fuettererella fungiforma n.sp. are formally described on the basis of Eocene and Oligocene samples from DSDP Site 357 (western South Atlantic Ocean).
Taxonomy and palaeoceanographical significance of the genus Krithe (Ostracoda) in the Brazilian margin
Authors: Do Carmo Dermeval Aparecido , Sanguinetti Yvonne T.
Published: July 2010

Abstract. The results of taxonomic, geographical distribution and palaeoecological studies of the genus Krithe from the Brazilian continental margin are presented. The following species and subspecies are recognized: Krithe reversa Bold, 1958; K. trinidadensis Bold, 1958; K. morkhoveni morkhoveni Bold, 1960; K. coimbrai sp. nov.; and K. gnoma sp. nov. Four species are left in open nomenclature. The occurrence of Krithe within the Brazilian continental margin is restricted to areas under the influence of cold waters and, considering their stratigraphic distribution in Cenozoic strata, they are here recognized as being useful as palaeoceanographic indicators. Of the above-mentioned species, only two occur within the Brazilian continental shelf; these are K. coimbrai and K. gnoma. These species are eurybathic and their occurrences in a shelf environment are restricted to areas under the influence of the Falkland Current. Considering their stratigraphic distribution within the Pelotas Basin, southern Brazil, and their association with other cold-water taxa, including species of foraminifera, it is here suggested that the Falkland Current was already operating in the Miocene.
Intra-annual variability and patchiness in living assemblages of salt-marsh foraminifera from Mill Rythe Creek, Chichester Harbour, England
Authors: Swallow Jane E.
Published: July 2010

Abstract. The areas of coastal marsh studied in Mill Rythe Creek, Chichester Harbour, southern England, support a fluctuating foraminiferal assemblage which, although similar to those recorded in other parts of the UK and the Atlantic seaboard of North America, has its own distinctive assemblage of species. This is due to the constantly high salinity of the water here. Unusually, these marshes do not receive freshwater input from a nearby river and thus are not subject to tidal fluctuations in salinity.The mid-marsh Site 1 has a fauna consisting of typical marsh species, e.g., Jadammina macrescens, Trochammina inflata and Miliammina fusca. In addition, normal marine salinity allows Quinqueloculina oblonga to flourish and even dominate the fauna in most samples. The lower marsh Site 2 contains a typical marsh fauna dominated by hyaline forms. The dominance of Ammonia beccarii [aberdoveyensis] is most characteristic of the lower marsh, together with Haynesina germanica. The normal marine salinity of the marsh can again be confirmed by the high abundance of Quinqueloculina oblonga.The results of a replicate sampling regime employed in this study clearly demonstrate the patchy nature of the living foraminiferal distribution in marsh environments over small lateral distances as well as the high seasonal variability of foraminiferal abundances.
Subdivision of the dinoflagellate cyst Family Suessiaceae and discussion of its evolution
Authors: Palliani Raffaella Bucefalo , Riding James B.
Published: July 2010

Abstract. The recent description of Umbriadinium mediterraneense Bucefalo Palliani & Riding 1997 from the Early Jurassic of central Italy and Greece has provided new information on the phylogeny of the dinoflagellate cyst Family Suessiaceae. On the basis of the morphology of the five suessiacean genera, a subdivision of the family into two new subfamilies is proposed. These are the Late Triassic Suessioideae and the Early Jurassic Umbriadinoideae. The evolution of the Family Suessiaceae is related to the evolution of scleractinian corals, largely on the basis of the similarity of their evolutionary patterns and geographical palaeodistributions.
Ostracods from the Upper Jurassic (Oxfordian-Tithonian) of southern Germany
Authors: Schudack U. , Schudack M. E.
Published: July 2010

Abstract. At present the ostracod faunas from the Upper Jurassic of southern Germany are incompletely known due to the absence of detailed studies. This preliminary systematic investigation has yielded 46 species from 25 genera, of which 23 species are left in open nomenclature, while 4 are new species: Bythoceratina (Praebythoceratina) danuvensis, Nemoceratina (Pariceratina) urlichsi, Pokornyopsis punctata and Quasihermanites spiralus. Diversity increases through the late Jurassic with 16 species in the Oxfordian, 19 species in the Kimmeridgian, and 23 species in the Tithonian. Endemism is lowest in the Oxfordian, while highest in the Kimmeridgian.
Calcareous foraminifera from the Ordovician of Baltoscandia
Authors: Schallreuter R. E. L.
Published: July 2010

Abstract. Ordovician erratic boulders from northern Germany have yielded uniserial calcareous foraminifers which were previously unknown from the Baltoscandian Ordovician. They represent at least two new species which are provisionally placed in the genus Saccamminopsis Sollas, 1921.
Observations on surface ornamentation in fossil Ostracoda
Authors: Fitz-Gerald B.
Published: July 2010

Abstract. It has recently been demonstrated (Okada, 1982) that some reticulate Ostracoda develop ornamentation by a process which reflects the arrangement of underlying epidermal cells. Pitting and secondary reticulation are also characteristic of many such forms, either during ontogeny or phylogeny, and as these features are of lesser dimensions than epidermal cells, a process at variance with that described by Okada must be responsible for their production. Outlined below is evidence from fossil Ostracoda supporting the hypothesis that actual valve resorption may occur during ontogeny to produce these second order features.
Gerdocypris, a new genus of Paracyprididae (Ostracoda) from the North Atlantic, Mediterranean and East Africa
Authors: Mckenzie Kenneth G.
Published: July 2010

Abstract. The genus Gerdocypris (type species Gerdocypris muelleri sp. nov.) is described as new based on a mature male from the Bay of Naples. Gerdocypris ranges from the North Atlantic and Mediterranean to East Africa. Its differences from Aglaiocypris and Aglaiella are discussed and tabulated.
New species of dinoflagellate cysts from the Campanian-Danian chalks at Hallembaye and Turnhout (Belgium) and at Beutenaken (the Netherlands)
Authors: Slimani Hamid
Published: July 2010

Abstract. A palynological study of Campanian-Danian chalks from the quarries at Beutenaken and Hallembaye (Maastricht region) and from a borehole at Turnhout (northern Belgium) has revealed the presence of seven new species and subspecies of dinoflagellate cysts: Exochosphaeridium? Masureae sp. nov., Leberidocysta chlamydata subsp. schiolerii subsp. nov., Odontochitina streelii sp. nov., Pervosphaeridium septatum sp. nov., Spiniferites ramosus subsp. pterocoelus subsp. nov., Stephodinium? spinosum sp. nov. and Xenascus wetzelii sp. nov. Nexosispinum? complicatum described by Slimani (1996) as a new species is now a junior synonym of Pulchrasphaera minuscula Schiøler et al. (1997).
Coiling directions in some Miocene planktonic Foraminifera
Authors: Winter Chris J. , Pearson Paul N.
Published: July 2010

Abstract. We have measured the coiling directions of approximately 14 000 Miocene planktonic Foraminifera shells belonging to three lineages (Dentoglobigerina altispira, Paragloborotalia mayeri and Fohsella spp.) from sites in the Pacific (ODP Site 871) and Atlantic (ODP Site 925) oceans. Stratigraphic patterns in the preferred direction of coiling of these forms are assessed and their potential utility for biostratigraphic correlation is discussed. We find that all three lineages show a transition from approximately random coiling (although with a slight discernible sinistral bias in D. altispira) to sinistral predominance in both oceans, although the timing and pattern of change is different in each case.
A new name for Achistrum brevis Mostler, 1971 (Holothuroidea) [non Achistrum brevis Gutschick, 1959 (Holothuroidea)]
Authors: Mostler H. , Reich M.
Published: July 2010

Abstract. The holothurian paraspecies Achistrum brevis Mostler, 1971 from the Norian of Hernstein (Lower Austria), is a junior homonym of Achistrum brevis Gutschick, 1959. A. brevis Gutschick, 1959 is a significant element in the Lower Mississippian of northern Indiana, USA (Gutschick, 1959, 132). In consideration of this homonymy, it is proposed that Achistrum brevis Mostler, 1971, is changed and designated as Achistrum hagdorni Mostler & Reich nom. nov.SYSTEMATIC DESCRIPTIONClass Holothuroidea Blainville, 1834Order Apodida Brandt, 1835Parafamily Achistridae Frizzell & Exline, 1956Paragenus Achistrum Etheridge, 1881 emend. Frizzell & Exline, 1956Achistrum hagdorni nom. nov.(Fig. 1)*1971 Achistrum brevis Mostler: 9, pl.2, fig. 6 [non Achistrum brevis Gutschick, 1959: 132–133, fig. 2, pl.25, figs 20–24 – Lower Mississippian, northern Indiana, USA].1973 Achistrum cf. brevis Mostler; Mostler & Parwin: 20.1978 Achistrum brevis; Mostler: 14.1992 A. brevis Mostler; Gilliland: 83.Derivation of name. In honour of Dr Hans Hagdorn (Ingelfingen, Germany).Diagnosis. See Mostler (1971, p. 9).Types. Holotype, University of Innsbruck; see Mostler (1971, pl.2, fig. 6).Type locality and horizon. Hernstein (Lower Austria). Norian.Description. See Mostler (1971, p. 9).Remarks. See Mostler (1971, p. 9).
Cribratina hoeverensis Steffahn & Helm sp. nov.: a new ‘larger’ agglutinated foraminiferal species from the Upper Cretaceous (Lower Campanian) of Hannover, NW Germany
Authors: Steffahn Jens , Helm Carsten
Published: July 2010

Abstract. A new species, Cribratina hoeverensis sp. nov., is erected to accommodate the youngest known species of the larger agglutinated foraminiferal genus Cribratina Sample, 1932, recovered from Upper Cretaceous beds (Lower Campanian, lingualquadrata Zone and lowermost pilula Zone) east of Hannover, NW Germany.
Eodinia poulseni sp. nov., a dinoflagellate cyst from Middle Jurassic of Central Poland
Authors: Barski Marcin
Published: July 2010

Abstract. A new species of dinoflagellate, Eodinia poulseni, is described from the Middle Jurassic of Central Poland. Light and scaning electron microscopy shows that this species has a complex cyst wall consisting of autophragm and ectophragm. Eodinia poulseni sp. nov. has similarities to some common Middle Jurassic species, especially when separate hypocysts are observed. Important differences between Eodinia pachytheca, Mosaicodinium mosaicum, Wanaea acollaris, W. cornucavata and Hurlandsia rugarum are discussed. Some phylogenetic and environmental relationships to the Early Cretaceous freshwater species Hurlandsia rugarum are suggested. H. rugarum shows similarity in archaeopyle, overall shape and tabulation formula but is acavate and also distinct from E. poulseni in time.
Biostratigraphy and palaeoecological interpretation of the Miocene–Pleistocene sequence at El-Dabaa, northwestern Egypt
Authors: Ibrahim Mohamed I. A. , Mansour Ahmed M. S.
Published: July 2010

Abstract. Thirteen shallow boreholes were drilled by the Qattara Project Authority (QPA) on the top of the second limestone ridge in the El-Dabaa area, along the Mediterranean coast, northwest Egypt. Five foraminiferal biozones could be recognized in ascending stratigraphic order: the Heterostegina costata, Praeorbulina sicana, Borelis melo melo, Globigerinoides obliquus extremus zones and an un-named zone, embracing the Middle Miocene Marmarica Formation and the Pliocene–Pleistocene Alexandria Formation.The deposition of the fossiliferous carbonate rocks of the Marmarica Formation probably took place in a warm water, inner shelf environment (0–20 m palaeodepth) subjected to some current activity, and with salinity ranging from normal to slightly hypersaline (35–50‰). The sediments of the oncolitic/shelly rocks were deposited in slightly deeper water than the overlying fossiliferous rocks and in less agitated conditions, as indicated from the high percentages of rotaliids and rarity of miliolids.The foraminiferal associations in the Alexandria Formation indicate a clear, relatively agitated, near-shore marine depositional environment in a vegetated inner neritic zone (10–25 m palaeodepth) with 25°C surface water isotherms. On the other hand, the accumulation of the clayey sediments and some geosoils (basal part of the Alexandria Formation) occurred in less agitated, intertidal water conditions, as deduced from the occurrence of planktic foraminiferal species as Globigerinoides trilobus trilobus, G. trilobus immaturus, G. obliquus extremus, G. obliquus obliquus, Globorotalia inflata, and Orbulina universa.
Biosequence stratigraphical and palaeoenvironmental findings from the Cretaceous through Tertiary succession, Central Indus Basin, Pakistan
Authors: Wakefield M. I. , Monteil E.
Published: July 2010

Abstract. Integrated analysis of foraminiferal and palynological data from the Duljan-1 well, Central Indus Basin, Pakistan, is used to identify critical surfaces (candidate sequence boundaries (SB) and maximum flooding surfaces (MFS)) and construct a biosequence stratigraphical framework. Within the Barremian through Bartonian–Priabonian? succession 15 depositional sequences have been recognized, each with a candidate MFS. These biosequences are shown to equate with the local lithostratigraphy and tentatively with the ‘global’ large-scale depositional cycles of Haq et al. (1987). Detailed dating has enabled seven candidate MFS to be tentatively equated with MFS identified on the nearby Arabian plate (Sharland et al., 2001). A combination of detailed age dating and palaeobathymetric determinations indicates significant basin uplift and erosion at end Cretaceous and end Eocene times, the latter coinciding with closure of Neo-Tethys. Smaller-scale unconformities are also noted. Multi-disciplinary palaeoenvironmental interpretations enable recognition of detailed changes in water mass conditions. Palynological data suggest these changes result from variations in terrestrial/freshwater input, though evidence of periodically low oxygen bottom water conditions/shallowing of the oxygen minimum zone, possibly ‘Oceanic Anoxic Event-2’ (OAE-2; late Cenomanian–Turonian) is suggested as a further control.
The identity of the Middle Jurassic Ostracoda Fastigatocythere juglandica (Jones) and Lophocythere fulgurata (Jones & Sherborn): a solution to an old enigma
Authors: Ware Martin , Whatley Robin C.
Published: July 2010

Abstract. The Upper Bathonian and Lower Callovian ostracod species Fastigatocythere juglandica (Jones, 1884) is shown to comprise a total of five subspecies. Of these, F. juglandica juglandica, F. juglandica major (Jones & Sherborn, 1888) and F. juglandica postrotunda subsp. nov., described as new herein, are all confined to the Upper Bathonian. Lophocythere fulgurata (Jones & Sherborn, 1888) is demonstrated to be an instar of F. juglandica major. Fastigatocythere juglandica degenerata subsp. nov., described as new herein and F. juglandica rugosa Weinholz comb. nov., both confined to the Lower Callovian, extend the known range of the species into that stage for the first time.
Arthur Earland (1866–1958) and his links with Ireland
Authors: Wyse Jackson Patrick N. , Robinson M. , Austin W. E. N.
Published: July 2010

Abstract. INTRODUCTIONIn a recent paper, Robinson & Austin (2001) document the foraminiferal slide collection of Arthur Earland, and the correspondence between him and D’Arcy Wentworth Thompson, held at the University of St Andrews, Scotland. A number of slides are of material collected in Irish waters, and an interesting photograph is reproduced showing Earland standing on the Irish Fisheries cruiser Helga in the company of two men. This brief note examines Earland’s links with Ireland, discusses the provenance of some of Earland’s Irish material, confirms the date the photograph was taken, suggests who the photographer was, and provides biographical information on the two additional men portrayed in it – G. P. Farran and R. Southern.EARLAND IN IRELAND IN 1911Figure 1 (of Robinson & Austin, 2001) shows Earland, Farran and Southern on the deck of the cruiser Helga. This cruiser was used for a large number of research cruises carried out by the Irish Fisheries board between the early 1900 s and 1914. The photograph dates from the middle of August 1911 when the ship was used during the celebrated Clare Island Survey off the west coast of County Mayo, Ireland (Praeger, 1949). This ambitious project brought together over 200 European naturalists and experts (including Earland), in order to carry out a comprehensive survey of all aspects of the natural history in and around Clare Island (Collins, 1985). Southern directed the dredging operations from the Helga.Edward Heron-Allen and Arthur Earland were asked to work up the Foraminifera and arrived at . . .
Echinidinium zonneveldiae sp. nov., a dinoflagellate cyst from the Late Pleistocene of the Baltic Sea, northern Europe
Authors: Head Martin J.
Published: July 2010

Abstract. The dinoflagellate cyst species Echinidinium zonneveldiae sp. nov. is described from last interglacial (Eemian Stage; Upper Pleistocene) deposits of the southern Baltic Sea, where it contributes to the characterization of a diverse interglacial dinoflagellate flora represented by more than 50 species. Echinidinium zonneveldiae is a probable heterotrophic species and does not occur in the region today. The nomenclatural status of the genus Echinidinium Zonneveld, 1997 ex Head et al., 2001a is clarified, and it is noted that two of the seven species assigned to Echinidinium are not validly described.
Taphrognathus carinatus (Higgins & Varker) (Conodonta, Vertebrata) from the Lower Carboniferous of Belgium, and international correlation using taphrognathids
Authors: Purnell Mark A. , Von Bitter Peter H. , Groessens Eric
Published: July 2010

Abstract. Lower Carboniferous conodont faunas from shallow shelf and more offshore settings have few taxa in common and correlation is difficult. Consequently, reports of shallow shelf taphrognathid conodonts and indications that the Taphrognathus transatlanticus Range Zone may be recognizable in Lower Carboniferous sequences in Belgium (Conil et al., 1991) are potentially significant for international correlation using conodonts. Here we present a review of the usefulness of taphrognathid conodonts in international correlation and a brief summary of the current state of their taxonomy. Taphrognathus transatlanticus von Bitter & Austin, 1984 cannot be accommodated within Taphrognathus Branson & Mehl, 1941 and, until a new genus is erected, it is best referred to as aff. Taphrognathus transatlanticus. The status of T. rhodesi as a distinct species is uncertain. The affinities of T. alaskensis are currently obscure, but we strongly doubt that it is a species of Taphrognathus. Regarding Belgian taphrognathids, examination of specimens from the collection reported by Conil et al. (1991) reveals that Taphrognathus carinatus (Higgins & Varker, 1982) is present. This extends the geographical range of T. carinatus beyond the UK, but we are unable to confirm the presence of aff T. transatlanticus in Belgium.
Early to lowermost Middle Triassic Foraminifera from the Locker Shale of Hampton-1 well, Western Australia
Authors: Apthorpe M.
Published: July 2010

Abstract. Marine smaller foraminifera from a 350 m thick, non-carbonate borehole succession are described from the upper Lower Triassic to lowermost Middle Triassic (Spathian–Lower Anisian) of offshore Western Australia. This is only the second foraminiferal fauna of this age described from the Southern Hemisphere and it differs from a coeval fauna previously described from the same area (Heath & Apthorpe, 1986). The new fauna contains some ‘Tethyan’ genera previously recorded from South China and the Alps, including Duostomina, Krikoumbilica, Gsollbergella, Trocholina, Endothyra and Endothyranella. Other genera and species appear to persist from the Permian. Three species are described as new: Dentalina septacosta, Krikoumbilica compressa and Trocholina planoconvexa. The age of the fauna is based on palynological evidence, correlated with conodont dating.
A new ostracod (Crustacea) species (Geffenina wangi) from the Middle Permian of Jebel Gharif (Central Oman)
Authors: Crasquin-Soleau Sylvie
Published: July 2010

Abstract. This paper describes Geffenina wangi a new species of ostracod and lists associated ostracod species discovered in the Khuff Formation, Middle Permian (Wordian) in the Jebel Gharif area (Central Oman).
Integrated uppermost Campanian–Maastrichtian calcareous nannofossil and foraminiferal biostratigraphic zonation of the northwestern margin of Australia
Authors: Howe R. W. , Campbell R. J. , Rexilius J. P.
Published: July 2010

Abstract. During the latest Campanian–Maastrichtian the northwestern Australian margin was situated between the cool-water Austral Province to the south and the warm-water Tethyan Province to the north. The transitional nature of calcareous microfossil assemblages on the margin makes application of Tethyan biostratigraphic zonation schemes awkward, as many marker-species are missing or have different ranges. This study presents an integrated uppermost Campanian–Maastrichtian calcareous microfossil zonation based on two Ocean Drilling Program (ODP) holes on the Exmouth Plateau and eight petroleum exploration wells from the Vulcan Sub-basin. The zonation is refined and revised from the previously unpublished KCN (nannofossils), KPF (planktonic foraminifera), KBF (benthonic foraminifera) and KCCM (composite nannofossil and planktonic foraminifera) zonations, which are commonly used for petroleum exploration wells drilled on the northwestern margin. Revision of the zonations has highlighted a major Upper Campanian to lower Upper Maastrichtian disconformity on the Exmouth Plateau, which went largely unnoticed in previous examinations of the ODP material, but had been recorded previously elsewhere on the northwestern margin. The duration of the disconformity in the Vulcan Sub-basin is unclear, since intervals of the succession may be condensed in this area.
Ankumia van Veen, 1932 (nomen dubium): pathological moult retention in the Cytherellidae (Platycopida: Ostracoda)
Authors: Jones Peter J.
Published: July 2010

Abstract. The monotypic genus Ankumia is associated with the rich cytherellid fauna described by van Veen (1932) from the Upper Cretaceous (late Maastrichtian) rocks of South Limburg, The Netherlands. The type species (A. bosqueti van Veen, 1932) is redescribed because the genus possesses the enigmatic combination of cytherellid (posterior sex-dimorphism and R/L overlap) and eridostracan (several concentric bands) characters. As no holotype was designated, the redescription is based on a detailed SEM examination of the syntypes in the Bonnema/van Veen composite collection. Most syntypes show that the outer layer of coarse, concentric, rings, which form an oblique cone, are retained moults of a species of cytherellid. The point of retention in the early instars is along the posteroventral margin, contrary to the dorsal position of successive lamellae in eridostracan Cryptophyllus. Other syntypes possess the typical lateral outline of adult species of Cytherellidae. The ontogeny of each individual of retained moults (‘Ankumia’) has a nine-instar pattern, with a growth increment between successive moults about 1.15, slightly less than that (about 1.20) observed by Shaver (1953) for Cytherella bullata. The name Ankumia is abandonned, and a new combination proposed for the previous type species, Platella bosqueti (van Veen, 1932).
New ostracod (Crustacea) species of the genus Robertsonites from the Upper Pliocene Kuwae and Sasaoka formations, central and northeast Japan
Authors: Yamada Katsura
Published: July 2010

Abstract. The ostracod genus Robertsonites is widely distributed in high-latitude seas of the Northern Hemisphere. It also occurs abundantly in Plio-Pleistocene strata along the coast of the Sea of Japan, which were deposited under the influence of the Japan Sea Proper Water mass, below 150 m. The assemblages of the genus Robertsonites in the seas around Japan are quite different from those in the high-latitude seas of the Northern Hemisphere. A difference in the valve outlines of the genus in the two areas is also apparent. Nine species of the genus Robertsonites are restricted to strata and marine deposits around Japan, although only 12 species have been described world-wide, including the three new taxa described here. The Upper Pliocene Sasaoka and Kuwae formations in northeast and central Japan, contain seven species, including three new taxa, Robertsonites irizukii sp. nov., Robertsonites leptoreticulata sp. nov., and Robertsonites tabukii sp. nov., and one open-nomenclature taxon.
Professor Leslie Rowsell Moore 1912–2003
Authors: Spinner Edwin , Owens Bernard , Lunn Patricia
Published: July 2010

Abstract. Professor Leslie Moore, a former Sorby Professor and Head of the Department of Geology in the University of Sheffield, died on the 13 November 2003 at the age of 91 years. He was the driving force in the establishment of the Micropalaeontological Society.In 1968, during a period when the Geological Society, London was trying to co-ordinate the activities of all Specialist Working Groups in Britain, Leslie Moore was approached by the President of the Society with the request to assess the potential for establishing a Group to cater for the needs of micropalaeontologists. He consulted widely on the issue, not only within the micropalaeontological community but also with industry and other interested societies, only to find no over-whelming enthusiasm for the proposal. He was, however, impressed by the commitment within all branches of the science for the need for a greater degree of organization and identity and proposed the establishment of an autonomous body to meet those needs. It also provided the necessary ‘breathing space’ for the significance of the Geological Society proposals to be considered in full. The British Micropalaeontological Group was born in 1970 and Leslie Moore served as its first Chairman. During his tenure it became obvious that the way forward was to formalize the structure and, in due course, it emerged as the British Micropalaeontological Society.Leslie was born on June 23, 1912, the son of a miner in the Somerset Coalfield and he grew up in the small mining and market town of Midsomer . . .