bluuebunny/crossref_metadata_2025 huggingface dataset:
Late Neogene-Quaternary radiolarian biostratigraphy: a brief review
Authors: Haslett Simon K.
Published: July 2010

Abstract. Since the 1950s, it has become apparent that Radiolaria have significant biostratigraphical potential throughout Phanerozoic time, including the Late Neogene and Quaternary. Radiolarian biozonation schemes for this period have been developed, including a Standard Tropical Zonation, which illustrates the pan-oceanic application of radiolarian biostratigraphy to Pliocene–Quaternary sediments. The biostratigraphical resolution obtainable using Radiolaria is equivalent to other microfossil groups, such as planktonic foraminifera. The recognition of abundance events of Cycladophora davisiana, and of some other species, are an alternative radiolarian dating technique for the Pliocene–Quaternary, akin to dating sediment using oxygen stable isotope (δ18O) records and with similar resolution. A number of studies have used astronomical timescales, derived from orbitally tuning δ18O and gamma ray attenuation porosity evaluator (GRAPE) records, to provide ages for radiolarian biodatums. This approach should be adopted as a more accurate alternative to palaeomagnetic chronologies with their inherent flaws. This commentary concludes that Radiolaria are important microfossils and, as a group, continue to offer significant potential as a biostratigraphical tool in future studies of the marine Pliocene–Quaternary.
New calcareous dinoflagellates (Calciodinelloideae) from the Middle Coniacian to Upper Santonian chalks of Lägerdorf (northern Germany)
Authors: Hildebrand-Habel Tania , Willems Helmut
Published: July 2010

Abstract. Three new calcareous dinoflagellate species from the Middle Coniacian to Upper Santonian chalks of Lägerdorf (northern Germany) are formally described: Calcicarpinum macrogranulum n. sp., Pirumella fragilis n. sp. and Ruegenia quinqueangulata n. sp. The species show differing vertical distribution patterns which might result from local sea-level changes: P. fragilis and R. quinqueangulata are restricted to the possibly transgressive upper Mid-Coniacian to Lower Santonian interval and C. macrogranulum occurs consistently only in the probably regressive lower Mid-Coniacian and Middle to Upper Santonian intervals.
Early Carboniferous (Late Tournaisian–Early Viséan) ostracods from the Ballagan Formation, central Scotland, UK
Authors: Williams Mark , Stephenson Michael , Wilkinson Ian P. , Leng Melanie J. , Miller C. Giles
Published: July 2010

Abstract. The Ballagan Formation (Late Tournaisian–Early Viséan) of central Scotland yields an ostracod fauna of 14 species in ten genera, namely Beyrichiopsis, Cavellina, Glyptolichvinella, Glyptopleura, Knoxiella, Paraparchites, Sansabella, Shemonaella, Silenites and Sulcella. The ostracods, in combination with palynomorphs, are important biostratigraphical indices for correlating the rock sequences, where other means of correlation, especially goniatites, conodonts, foraminifera, brachiopods or corals are absent. Stratigraphical distribution of the ostracods, calibrated with well-established palynomorph biozones, identifies three informally defined intervals: a sub-CM palynomorph Biozone interval with poor ostracod assemblages including Shemonaella scotoburdigalensis; a succeeding interval within the CM palynomorph Biozone where Cavellina coela, Cavellina incurvescens, Sansabella amplectans and the new species Knoxiella monarchella and Paraparchites discus first appear; and, an upper interval, in the upper CM Biozone, marked by the appearance of Sulcella affiliata. At least locally in central Scotland, S. affiliata permits a level of resolution equivalent to a sub-zonal upper division of the CM Biozone. The fauna, flora, sedimentology and stable isotope composition (δ13C and δ18O) of carbonate minerals in the Ballagan Formation suggest the ostracods inhabited brackish, hypersaline and ephemeral aquatic ecologies in a coastal floodplain setting.
A key to the unilocular hyaline Foraminifera
Authors: Revets Stefan A.
Published: July 2010

Abstract. The paper is an attempt to apply best taxonomic practice to a well delimited group of Foraminifera: the lagenids. Analysis results in the recognition of 20 characters, which are defined and described through an explicitly defined, consistent terminology. The database resulting from the scoring of characters of all the lagenid genera allows the construction of a set of identification keys and the production of a set of uniform, consistent diagnoses.
Extinct foraminifera figured in Brady’s Challenger Report
Authors: Hayward Bruce W. , Kawagata Shungo
Published: July 2010

Abstract. Brady’s (1884) widely available monograph on foraminifera from the Challenger Expedition is generally assumed to illustrate hundreds of living species from modern seafloor sediment from around the world. This assumption may have contributed to the delay in recognizing the youngest extinction ‘episode’ in the deep sea, which occurred during the mid-Pleistocene Climate Transition. At least 18 of the species illustrated by Brady are part of the group of c. 70 elongate, benthic foraminifera now known to have died out globally between 1.2 and 0.6 million years ago. The figured specimens were sampled from just seven stations that presumably contain relict or reworked sediment, possibly mixed in with Holocene. The majority (14 species) come from two stations (191A, 192) off Kei Islands, Banda Sea, Indonesia. Station 192, from c. 250 m depth, is considerably shallower than the established fossil bathymetric ranges of the extinct species and therefore tectonic uplift is inferred. Additional pre-Holocene or even extinct species may also be among those illustrated by Brady, especially from the seven stations so far identified.
A new UK record of Herpetocypris brevicaudata Kaufmann, 1900 (Cypridoidea, Ostracoda): palaeo-temperature implications
Authors: Smith Robin J.
Published: July 2010

Abstract. Herpetocypris brevicaudata Kaufmann, 1900 has only two previous records from the UK: from Marlborough, Wiltshire, (Lowndes, 1930) and from Garelochhead, Argyll and Bute (collected by A. J. Bruce in July 1958, and deposited in the NHM collections), two localities that correspond to those marked by Henderson (1990). A third locality, from near Sittingbourne, Kent, UK, is reported here.Herpetocypris brevicaudata (Pl. 1; Fig. 1) and Heterocypris incongruens (Ramdohr, 1808) were found in a thick, brown algal layer at the bottom of a metal cattle trough, by the footpath leading from Rodmersham to Lynsted, near Dully Road, N51° 18′ 46.9′′ E000° 46′ 32.8′′. Samples taken on 6 December 2003 and 18 January 2004 produced abundant specimens of both ostracod species (i.e. tens of thousands). On 18 January 2004: temperature=3°C, pH=7.66, depth of sample 0.35 m, submerged macrophytes present. All specimens of H. brevicaudata were adult females, those of H. incongruens both adult females and juveniles.Lowndes (1930) and Meisch (2000) suggested that H. brevicaudata is often mistaken for Herpetocypris reptans (Baird, 1835) and thus H. brevicaudata may be more common than records indicate. The wide calcified inner lamella (Pl. 1), the arrangement of the antenna natatory setae (Fig. 1) and the almost uniform green colouration of H. brevicaudata clearly separate it from H. reptans (Gonzalez Mozo et al., 1996).Experimental data collected by Roca & Wansard (1997) on H. brevicaudata from Spain determined that at 12.4°C development is slower and survival rates lower than at higher temperatures. These experimental data, combined . . .
The monothalamous foraminiferan Tinogullmia in the Black Sea
Authors: Sergeeva N. G. , Anikeeva O. V. , Gooday A. J.
Published: July 2010

Abstract. INTRODUCTIONThe organic-walled allogromiid genus Tinogullmia was established by Nyholm (1954) based on a single species, T. hyalina, from the Gullmar Fjord on the Swedish west coast. This distinctive species is characterized by an elongate, smoothly curved test with two terminal apertures located at the ends of tubular extensions. A similar species occurs in Kongsfjord, Svalbard (Gooday et al., 2005). Several other organic-walled allogromiids have been assigned to the genus Tinogullmia but are distinctly different from T. hyalina. A deep-water species from the NE Atlantic, described as Tinogullmia riemanni by Gooday (1990), has a relatively short, asymmetrical test and possibly represents a distinct genus. An undescribed sausageshaped species from Explorers Cove, Antarctica, assigned to Tinogullmia by Gooday et al. (1996), has a less elongate shape than T. hyalina and a thinner wall. The purpose of this note is to report the first record of this distinctive genus from the Black Sea.OBSERVATIONSDuring the 45th cruise of the Research Vessel Professor Vodyanitsky in 1994, three core samples were obtained using a multiple corer (Barnett et al., 1984) as part of an investigation of a methane seep area southwest of the Crimean peninsula (Station 5186; 44° 46.342′N, 31° 35.342′E, 78 m water depth). The sampling area bottom-water temperature is 8–10°C, rising to 13–15°C in summer; salinity is 17–18‰. The bottom sediment is phaseolinic silt (i.e. an alevrit silt associated live molluscs and dead molluscan shells). Each core was sub-sampled using a plastic tube, diameter 9.5 cm, length 5 . . .
Editorial: 25th Anniversary Issue
Authors: Gregory John
Published: July 2010

Abstract. The Journal of Micropalaeontology is celebrating its 25th Anniversary this year and The Micropalaeontology Society (TMS) is marking this special occasion. TMS started life as a specialist group (British Micropalaeontology Group) of the Geological Society of London in 1970. After some discussion, the Society set up in its own right in 1975 as the British Micropalaeontology Society, with a name change made in 2002 to reflect the society’s truly international membership. A milestone in Society history occurred in 1982 with the publication of our own international Journal with Lesley Sheppard as the first editor. The Journal was initially produced once a year, but since 1984 has become a twice yearly publication of growing international repute. There have been 5 editors of the Journal to date and I would like to take this opportunity to thank my predecessors for all their sterling efforts:Lesley Sheppard 1980–1987Michael Keen 1987–1994John Murray 1994–1997Malcolm Hart 1997–2003John Gregory 2003–The Society comprises six specialist groups which study Foraminifera, Microvertebrates, Nannofossils, Ostracods, Palynology and Silicofossils and the Journal welcomes contributions on all aspects of micropalaeontology. The Journal has seen the publication in excess of 500 articles over the last 25 volumes and its scope has always been broad, especially to show the application of microfossils to solving geological problems, with an emphasis on taxonomy. The principal fields of interest are: biostratigraphy; evolution; palaeobiology; palaeoenvironments; reviews and taxonomic studies. The emphasis has been on applications, and our aim is to . . .
Recent marine Ostracoda from the Solomon Islands: part 1 – Cypridoidea, Platycopina and Cladocopina
Authors: Titterton Rosemary , Whatley Robin C.
Published: July 2010

Abstract. Sixteen species of marine Cypridoidea belonging to seven genera and a rather small fauna of nine platycopid and two cladocopid species from the Solomon Islands are described. Nine species are described and illustrated as new. They are: Paracypris contracta, Triangulocypris teeteri, T. umbonata, Aglaiocypris supercylindrica, Argilloecia teres, Propontocypris paracrocata, P. supertrigonella, Cytherelloidea asymmetrica and C. dictyotos ssp. nov. Five species have been described previously and 11 species are retained in open nomenclature. While the Cypridoidea comprise only 15% of the total fauna of 160 species recorded from the Solomon Islands, they are not insignificant and, in some environments, are among the dominant ostracods. The platycopids/cladocopids comprise only 13% of the total fauna but likewise are dominant in some environments. They are typically SW Pacific in character.
On the award of TMS Honorary Membership, 26 November 2005 Professor John Murray – an appreciation
Authors: Whittaker John E. , Alve Elisabeth
Published: July 2010

Abstract. Contrary to popular belief, Professor John Murray and Sir John Murray (of Challenger fame) are not one and the same person. To begin with, their careers are separated by almost a century, but our Professor John Murray (B.Sc., ARCS, Ph.D., DIC, D.Sc) is hardly less renowned in today’s world of micropalaeontology, especially with regards to ecological studies of the foraminifera.John William Murray was born in London in 1937. Most of his childhood was however spent in Bury (now Greater Manchester), having been evacuated in WW2, before he moved back to Worthing, Sussex, when he was 16. As a child he had been seriously interested in microscopy and geology, and therefore it was not surprising that when he went up to university, he chose to read Pure Geology at Imperial College, University of London, in 1956. There, someone showed him some foraminifera in a First Year practical and he hasn’t been able to keep away from them since! Not only did he get a First, but he won several prizes (the Murchison Medal, the Watts Medal and the Clement Le Neve Foster Prize) as well. On graduation he was offered the chance to undertake a Ph.D. in micropalaeontology, under David Carter. He chose to study the ecology of Recent foraminifera, which for the time was highly unusual. The result, a seasonal study of the living foraminifera of a small estuary (Christchurch Harbour, now in Dorset) was a seminal one. He was even kind enough, subsequently, to lend one of us . . .
The life and works of Fortescue William Millett (1833–1915), foraminiferologist
Authors: Hodgkinson Richard L.
Published: July 2010

Abstract. The few obituaries that there are of Fortescue William Millett are rather cursory and incomplete. Now, 90 years later, a rather fuller picture of the man – hitherto, a rather enigmatic figure – and his foraminiferal work is presented, concentrating especially on his later years after his retirement to Cornwall. Millett published two substantial studies, on the foraminifera of the Malay Archipelago and the Pliocene St Erth beds of Cornwall, for which he is best remembered, but most of his other projects appear never to have been completed. His extensive collections and library, much of it in a poor condition, were rescued and conserved by Edward Heron-Allen after his death, and are now in The Natural History Museum, London.
Ankumia van Veen, 1932: a valid name, but a flawed generic concept (Ostracoda, Platycopina, Cytherelloidea)
Authors: Jones Peter J.
Published: July 2010

Abstract. Recent study of the syntype material of the type species of the monotypic genus Ankumia van Veen, 1932 (A. bosqueti van Veen, 1932) confirmed a pathological retention of moults, expressed by multilayered ridge-like structures, used for the original diagnosis of the genus (Jones, 2003). For this reason, it was proposed that the genus Ankumia should be abandoned as a nomen dubium in favour of Platella Coryell & Fields, 1937. This interpretation was challenged by Malz & Lord (2004), who saw no reason to treat Ankumia as nomen dubium and, acknowledging the unequivocal cytherellid nature of the species, posed and addressed two taxonomical questions: (1) do pathological individuals of cytherellids justify specific and/or generic ranking?; (2) why should Ankumia be abandoned in favour of Platella?In addressing their first question, Malz & Lord (2004) correctly answered in the negative. However, they claimed that ‘... demonstration of a corresponding “normal” species (including “pathological individuals”) among the associated cytherellids is wanting’. The author disagrees with this statement because he described and illustrated two morphological shell-types among the specimens assigned as syntypes of Ankumia bosqueti in the van Veen/Bonnema collection. They are the ‘Cytherella shell-type’ (Jones, 2003, pl. 1, figs 2–8) and the ‘Ankumia shell-type’ (Jones, 2003, pl. 1, fig. 1; pl. 2 figs 1–14), which correspond to the ‘normal’ species, and to the pathological individuals of that species, respectively. The Ankumia shell-type possesses concentric ribs that become progressively thinner from the adult to the juvenile stages. Of the 22 syntypes studied, 13 . . .
Professor John W. Neale (1926–2006)
Authors: Lord Alan
Published: July 2010

Abstract. John Neale was born in Burton-on-Trent where his father was concerned with the grocery business and, appropriately to the town, his grandfather was a cooper in the brewing industry. After leaving school he spent two terms at Manchester University, passing the First Year examinations and, in 1943, volunteered for wartime service in the Royal Navy. One year later he was commissioned an officer and served in the hazardous but vital role of minesweeping. With discharge from the navy in 1947 he rejoined Manchester University to follow a BSc General degree in Geology and Geography with subsidiary Zoology, graduating in 1949. It was during this time that he met his future wife, Patti, who was a fellow undergraduate. Upon graduation he was appointed as Assistant Lecturer in the small Sub-department (later a full Department) of Geology of the University of Hull, which was to be his scientific home for the rest of his professional life. John Neale and his senior colleague Lewis Penny, who also joined in 1949, were the only members of staff and for some years taught the full spectrum of Geology between them. John Neale’s diaries record how they had intensive discussions about developing their sub-department and building the teaching collections. The department grew in numbers of students and staff and won a reputation for sound teaching and, in time, for research. It is therefore easy to understand how saddened John Neale was when, following a reorganization of Earth Science departments in British universities, the department he had . . .
Seasonal dynamics and decadal changes of benthic foraminiferal assemblages in the western Baltic Sea (NW Europe)
Authors: Schönfeld Joachim , Numberger Lea
Published: July 2010

Abstract. Living benthic foraminiferal assemblages were monitored between January and July 2004 in the Kiel Bight, Baltic Sea. Phytoplankton blooms and the deposition of organic detritus were depicted by fluorometer hydro casts and pigment concentrations in surface sediments. Three depositional pulses of organic matter were identified by high phytoplankton concentrations above the sea floor and elevated pigment concentrations in the surface sediment. The foraminiferal assemblage composition remained rather constant but the population density of Elphidium excavatum clavatum showed a two- to six-fold increase within a few days after organic detritus deposition. The foraminiferal assemblage composition was compared to earlier studies in this area. Elphidium excavatum, Ammotium cassis and E. incertum dominated the living fauna in the 1960s and 1970s. The recent survey revealed a predominance of E. excavatum subspecies (more than 90% of the living assemblage). The average population densities were six times higher than in the 1970s. Data structure and model calculations suggested that E. excavatum clavatum is able to reproduce rapidly, with high offspring numbers at elevated food supply. The diminution of A. cassis has occurred in Kiel Bight during the last ten years and was most likely induced by a period of low deep-water salinities in the early 1990s.
Foraminiferal stratigraphy and palaeoecological implications in turbidite-like deposits from the Early Tortonian (Late Miocene) of Greece
Authors: Drinia H. , Antonarakou A. , Tsaparas N. , Dermitzakis M. D.
Published: July 2010

Abstract. The Lower Tortonian Ag. Giannis section, in Gavdos Island, Greece, consists of an outer neritic to upper bathyal, marly hemipelagic sequence which is interrupted by thick turbidite-like sandy deposits. During deposition of the marly intervals, reworking was considerably reduced.This paper contributes to knowledge concerning benthic foraminiferal response to dynamic sedimentary environments. Important palaeoecological information for benthic foraminiferal assemblages was gathered and analyzed in order to create a regionally consistent picture of the palaeoenvironment. Samples were analyzed statistically in order to identify the different palaeoenvironmental settings during turbiditic sedimentation. Undisturbed basal marls of the section are characterized by the predominance of a diversified Uvigerina striatissima assemblage typified by a broad variety of morphotypes with different inferred habitat preferences and feeding strategies, indicating rather well-oxygenated bottom waters. This environmental stability was subsequently disrupted by recurrent deposition of turbidite-like sands. A low-diversity Valvulineria complanata-Globobulimina sp. assemblage is dominant in this part of the succession, as these specialized endobenthic species could keep pace with high-energy sedimentary settings. Just above the turbidites, a “recolonization” fauna (Bolivina alata assemblage), composed entirely of infaunal elements is observed, indicating a nutrient-rich substrate. This oligotypic fauna is later replaced by a more diversified microfauna capable of occupying a wider range of ecological niches.
The Brady Medal
Authors: Siveter David J.
Published: July 2010

Abstract. In 2007 The Micropalaeontological Society commissioned and awarded the Brady Medal, the first medal in the history of the Society. This report records the various stages in that process. The inaugural recipient of the medal, Professor John Murray of the University of Southampton, was presented with the award at the Annual General Meeting of the Society, held at University College London on 7 November 2007.THE NAMEThere was no shortage of ‘possibles’ when TMS committee had the nice but tricky task of deciding the name of the medal. The final choice of the name met with strong approval by all at the Committee meeting on 14 March 2007, at which the criteria and mechanism for awarding the medal were also agreed. The medal is named in honour of George Stewardson Brady (1832–1921) and his younger brother Henry Bowman Brady (1835–1891), in recognition of their pioneering studies in micropalaeontology and natural history. Their father was a medical Doctor and they received their early education at Quaker schools in the northeast of England. George Brady went on to become Professor of Natural History at Newcastle College of Physical Science and a Fellow of the Royal Society, and is best known for his work on ostracods. Henry Brady made his way as a successful pharmacist before turning full time to the study of micro-organisms, especially foraminifera; he also received the accolade of FRS. Over their entire adult lives they published what are now deemed fundamental contributions to the then emerging . . .
Co-occurrence of the foraminifer Mohlerina basiliensis with Bacinella–Lithocodium oncoids: palaeoenvironmental and palaeoecological implications (Late Oxfordian, Swiss Jura)
Authors: Védrine Stéphanie
Published: July 2010

Abstract. The stratigraphical and spatial distribution of the foraminifer Mohlerina basiliensis and Bacinella–Lithocodium oncoids was studied in the lagoonal deposits of the oncoid-rich Hauptmumienbank Member from the Swiss Jura Mountains (Late Oxfordian, NW Switzerland). Mohlerina basiliensis has a double-layered wall structure (thick outer hyaline-radial calcite layer with a lamellar structure and thin inner microgranular calcite layer) and is preferentially found in low-energy facies and associated with normal-marine bioclasts and Bacinella–Lithocodium oncoids. The distribution of Mohlerina basiliensis is relatively patchy. The ‘distal’ platform facies present a higher abundance and a more extensive stratigraphic occurrence of this foraminifer. The timing of the ecological evolution is given by the sequence- and cyclostratigraphic framework and illustrates the stepwise flooding of the platform. Bacinella–Lithocodium oncoids have diameters of a few millimetres to several centimetres and are composed of an alternation of Bacinella–Lithocodium meshwork and thin micritic laminae. They are found preferentially in low-energy facies (bioclastic wackestones) of open lagoons. The distribution of Bacinella–Lithocodium oncoids through time and space is also patchy; however, they appear more abundantly in ‘distal’ platform facies. This study reveals the co-occurrence of Mohlerina basiliensis and Bacinella–Lithocodium oncoids and thus suggests similar environmental conditions.
Taxonomy and palaeobiogeographical significance of four new species of Semicytherura (Ostracoda, Crustacea) from the Early Pleistocene Omma Formation of the Japan Sea coast
Authors: Ozawa Hirokazu , Kamiya Takahiro
Published: July 2010

Abstract. The genus Semicytherura (Ostracoda, Crustacea) is distributed widely in shallow-sea areas of the Northern Hemisphere and occurs commonly in Pliocene and Pleistocene strata along the Japan Sea coasts. Four new species -Semicytherura robustundata sp. nov., Semicytherura subslipperi sp. nov., Semicytherura leptosubundata sp. nov. and Semicytherura tanimurai sp. nov. - are described from the Early Pleistocene Omma Formation, central Japan. These species are palaeobiogeographically significant in the history of species diversity changes in Japan Sea benthic fauna during the Late Cenozoic. The geological and geographical occurrences suggest that these four species originated within the Japan Sea from the Late Pliocene, including one species that diversified by heterochronic evolution, and were endemic to the Japan Sea. They became extinct within this sea during the Early Pleistocene.
Evidence for a possible life-cycle association between Syracosphaera protrudens (heterococcolithophore) and Syracosphaera pulchra HOL pirus-type (holococcolithophore)
Authors: Triantaphyllou M. V. , Dimiza M. D. , Malinverno E. , Young J. R.
Published: July 2010

Abstract. An apparently unambiguous combination coccosphere from the Eastern Mediterranean (Aegean Sea, Greece) is documented involving Syracosphaera protrudens Okada & McIntyre, 1977 and Syracosphaera pulchra Lohmann, 1902 HOL pirus-type. This finding is difficult to interpret in terms of the current understanding of Syracosphaera taxonomy and adds evidence to the hypothesis of a distinctly complex Syracosphaera pulchra life cycle.
Pyritized microfossils in palynological slides from the Late Cretaceous of Colombia
Authors: Prössl Klaus F. , Grösser Joachim R.
Published: July 2010

Abstract. Palynological investigations of Late Cretaceous to Tertiary sediments of the Andes in Colombia yielded some distinct groups of palynoclasts recovered as pyritized remains of diatoms, radiolaria and foraminifera. The different processes of pyritization are illustrated and the palaeontological use of these fossils is discussed. Techniques for investigating such opaque microfossils are also suggested.
Early Eocene marine ostracods from the Crescent Formation, southwestern Washington State, USA
Authors: Yamaguchi Tatsuhiko , Goedert James L.
Published: July 2010

Abstract. An assemblage of eleven species of Early Eocene marine intertidal and sublittoral ostracods has been found in the Crescent Formation in the Black Hills, Thurston County, Washington State, USA. The ostracods are subtropical and tropical taxa, such as Bairdoppilata, Cytherella and Neomonoceratina, which are found south of Washington today. Based on the geological age of the formation, the fauna corresponded to the Early Eocene Climatic Optimum. Five new species are recognized: Acanthocythereis olympiana sp. nov., Ambostracon irizukii sp. nov., Bairdoppilata crescentana sp. nov., Coquimba washingtonensis sp. nov. and Cytherelloidea squiresi sp. nov. This new assemblage from the Crescent Formation is the northernmost record of Early Eocene ostracods for the entire Pacific Basin.
A minute new species of Saccammina (monothalamous Foraminifera; Protista) from the abyssal Pacific
Authors: Ohkawara N. , Kitazato H. , Uematsu K. , Gooday A. J.
Published: July 2010

Abstract. Saccammina minimus sp. nov., a spherical agglutinated organism presumed to be a foraminiferan, is described from the Kaplan Central site in the abyssal eastern Equatorial Pacific (5042 m water depth). The new species is minute in size (<100 μm diameter) with a test wall composed of a jumble of small mineral grains and a few relatively larger diatom fragments. Occasional specimens, often droplet-shaped rather than spherical, have a simple aperture. The new species is by far the most abundant organism in sieve fractions >32 μm of samples collected at the KC site. In six subcores (6.6 cm2 surface area, 0–1 cm layer) from two cores obtained during a single deployment of a multiple corer, it represented 59% of all stained foraminifera in the samples. However, it had an extremely patchy small-scale distribution on a scale of centimetres; for example, 3, 285 and 1090 specimens were extracted from three subcores. A separate study has reported similar patterns among other minute indeterminate monothalamous foraminifera at the Kaplan East site (4032–4089 m water depth) located to the east, c. 1200 km from our study site. The reason for these very patchy distributions is not clear.
Talking about a re-evolution: blind alleys in ostracod phylogeny
Authors: Horne David J.
Published: July 2010

Abstract. The description of a new genus of bairdiid ostracod, on the basis of possession of eye tubercles (previously unknown in the group), has been criticized on the grounds that such ocular structures are not a valid criterion for establishing a genus, and for the authors’ failure to discuss adequately the phylogenetic implications of a sighted taxon apparently arising from blind ancestors. The latter point particularly refers to Dollo’s Law, according to which complex evolutionary traits, once lost, cannot be regained. In response to these criticisms, criteria for sightedness in ostracods are reconsidered, leading to the conclusion that ostracods without eye tubercles are not necessarily blind. A brief review of recent literature (covering vertebrates, invertebrates and plants) demonstrates that Dollo’s Law is not inviolable; on the contrary, there appear to be several well-documented examples of the reactivation of dormant genes, allowing the reappearance of ‘lost’ characters, in some cases after several million years. The implications for the occurrence of rare males in ancient asexual lineages are considered, and it is concluded that the loss of traits such as sightedness and sexual reproduction might not be irreversible.
Wall Structure of the agglutinated foraminifera Eggerella bradyi (Cushman) and Karreriella bradyi (Cushman)
Authors: Weston Janice F.
Published: July 2010

Abstract. Specimens of the agglutinated foraminifera Eggerella bradyi (Cushman) and Karreriella bradyi (Cushman) have been sectioned to study their wall structure. Specimens of both species from the continental slopes off Britain have test walls composed of quartz, calcite and dolomite grains in an excess of calcareous cement. One specimen of E. bradyi examined came from below the C.C.D. and, in this case, the test wall is composed of quartz and feldspar grains with very little intergranular calcareous cement. This suggests one way in which a eurytopic, calcareous agglutinated species may adapt to living below the C.C.D.
The Triassic radiolarian genus, Triassocrucella gen. nov. and the Jurassic Hagiastrum Haeckel, 1882
Authors: Kozur Heinz
Published: July 2010

Abstract. The Triassic Hagiastrum species described by Kozur & Mostler (1978) and Pessagno (in Pessagno et al., 1979) do not belong to this genus in the restricted sense of Baumgartner (1980). Some can be assigned to Crucella Pessagno, 1971 but for the majority of these species a new genus, Triassocrucella gen. nov. is introduced. The taxonomic position of Hagiastrum Haeckel, 1882 is discussed.
The W. B. Carpenter Collection of Foraminifera: a catalogue
Authors: Murray John W. , Taplin Caroline M.
Published: July 2010

Abstract. This collection, housed in the Royal Albert Memorial Museum, Exeter, comprises 2113 slides mainly of Recent forms but including Tertiary, Cretaceous and Palaeozoic representatives. Fifty five specimens can be matched with published illustrations.
Larger agglutinated foraminifera from the Faeroe Channel and Rockall Trough collected by W. B. Carpenter
Authors: Murray John W. , Taplin Caroline M.
Published: July 2010

Abstract. The Carpenter collection contains numerous slides of larger agglutinated foraminifera from the Faeroe Channel area. These have been re-identified during the preparation of a catalogue. The Faeroe Channel has a cold bottom water mass to the north (temperature ∼ 0°C) overlying sandy sediment with few larger agglutinated foraminifera, and a somewhat warmer water mass to the south (temperature > 2°C) overlying carbonate ooze with a diverse fauna of larger agglutinated foraminifera.
Designation of lectotypes for certain species and subspecies of unilocular Nodosariida and Buliminida (Foraminifera), Part 1 – Those housed in the British Museum (Natural History)
Authors: Jones Robert Wynn
Published: July 2010

Abstract. Lectotypes are herein designated for 20 lagenoid species and subspecies housed in the British Museum (Natural History) and paralectotypes are also selected for eight of these. The original figures of all are reproduced, and those of two are supplemented by means of light photomicrographs. A brief discussion as to the whereabouts of the collections of Rymer Jones (1874) and Chaster (1892) is appended.
Observations on the Jurassic dinoflagellate cyst Nannoceratopsis ambonis Drugg, 1978
Authors: Riding J. B.
Published: July 2010

Abstract. The Lower to Middle Jurassic dinoflagellate cyst Nannoceratopsis ambonis Drugg, 1978 is here divided into two species, Nannoceratopsis ambonis Drugg, 1978 emend. nov. and N. dictyambonis sp. nov. on the basis of differing saggital band morphologies. The two species do not appear to intergrade morphologically and have differing stratigraphical ranges, N. ambonis emend. nov. being found from the Upper Pliensbachian (spinatum Zone) to the Upper Bajocian and N. dictyambonis sp. nov. being restricted to the uppermost Toarcian (moorei Subzone: levesquei Zone) – Lower Bajocian (laeviuscula Zone) interval.
Middle Triassic (Anisian-Ladinian) Palynomorphs
Authors: Brugman W. A. , Eggink J. W. , Visscher H.
Published: July 2010

Abstract. Initial results of the palynostratigraphical research in the Triassic of northeast Libya indicate the presence of Middle Triassic in several deep-wells. There is some evidence that the uppermost part of the Early Triassic (Late Scythian) as well as the early part of the Late Triassic (Karnian) may also be present. Additional palynological samples will need to be studied to confirm this view.Most Triassic assemblages in northeast Libya show a striking dominance of the monolete lycopodiophytic miospore Aratrisporites; this genus is represented by a large number of species (A. centratus, A. parvispinosus, A. strigosus, A. saturni, A. paenulatus, A. tenuispinosus, A. ovatus). A similar development is known to occur in the Middle Triassic of Australia and Pakistan. Bisaccate pollen is commonly present in the assemblages. Representatives of Triadispora and Lunatisporites are also frequently recorded.On the basis of a few additional forms, two palynologically distinctive intervals may be recognized within the Middle Triassic:Anisian interval. On the basis of Stellapollenites thiergartii, Strotersporites n. sp. of Visscher and Brugman 1981 (not illustrated) and Angustisulcites grandis, an Anisian age for the lower interval is indicated. The latter two species suggest the Early Anisian. The assemblages can be compared with similar assemblages from the Alpine Anisian in Europe (Visscher & Brugman, 1981; Brugman, in prep) and the Salt Range, Pakistan (Brugman & Baud, in prep).Ladinian interval. The upper part of the Libyan Middle Triassic is characterised by the absence of characteristic Anisian elements, and the incoming of rare representatives of the Circumpolles-group . . .
Late Ordovician Palynomorphs
Authors: Molyneux S. G. , Paris F.
Published: July 2010

Abstract. ACRITARCHSOrdovician acritarchs have been recorded in five core samples collected between 2520 ft. and 3000 ft. in Well E1-81, and ten cutting samples taken between 12150 ft. and 13240 ft. in Well J1-81A. All the assemblages recovered are of Late Ordovician age; no Early Ordovician or Middle Ordovician assemblages have been identified.Investigations have so far concentrated on the acritarch assemblages from Well El-81. The highest three Ordovician samples from depths of 2520 to 2550 ft., 2552 to 2557 ft., and 2562 to 2567 ft., yielded similar assemblages which include Veryhachium irroratum, V. cf. lairdii, V. oklahomense?, V. subglobosum, V. trispinosum, Villosacapsula setosapellicula and a new species, Striatotheca sp. A. Navifusa similis? is represented by one specimen in the sample from 2552 to 2557 ft. Another specimen from the same sample is tentatively referred to Aremoricanium syringosagis. Specimens of Baltisphaeridium, Peteinosphaeridium, Leiofusa and Eupoikilofusa occur throughout the interval 2520 to 2567 ft. but are rare. Commonly occurring species include V. irroratum and V. setosapellicula. V. irroratum has been recorded from the Middle Ordovician of North America (Loeblich & Tappan, 1969) and the Caradoc of England (Turner, 1984) but Cramer & Diez (1979) maintain that it has its acme in the Ashgill. V. setosapellicula is common in the Sylvan Shale of Oklahoma (Loeblich, 1970) which is generally understood to be of Ashgill age, but is rare in the Eden Shale (Caradoc) of Indiana (Colbath, 1979) and in the type section of the Caradoc Series in Shropshire, England (Turner, 1984). . . .
Ostracod faunas in the Purbeck and Wealden of England
Authors: Anderson F. W.
Published: July 2010

Abstract. The occurrence and abundance of ostracods found in 98 subdivisions (Faunicycles) of late Jurassic to early Cretaceous age in the English Purbeck and Wealden are summarised. Most of the taxa found are illustrated from holotype or other material and details of their ranges and abundance given in relation to each faunicycle. The characters of the ostracod assemblages and zones are described. Three new species (Cypridea brendae, C. hispida and Eoparacypris edmundsi); also two new subspecies (Cypridea setina pelota and C. tuberculata dorsiclavaia) are described and figured. A lectotype for Palaeocytheridea pellucida is selected and figured.
G. S. Brady’s Pleistocene ostracods from the Brickearth of the Nar Valley, Norfolk, U.K.
Authors: Athersuch John , Horne David J. , Whittaker John E.
Published: July 2010

Abstract. The identity of four ostracod species described by G. S. Brady (1865) from the Pleistocene Brickearth of the Nar Valley, Norfolk, E. England, is established. This has been accomplished by comparing rediscovered type material and Brady’s illustrations and descriptions with Recent specimens.
On Paradoxostoma? pyriforme Brady, Crosskey & Robertson; a foraminifer described as an ostracod
Authors: Whittaker John E. , Jones Robert Wynn
Published: July 2010

Abstract. The type-specimen of Paradoxostoma? pyriforme Brady, Crosskey & Robertson, 1874 has recently been discovered in the Hancock Museum, Newcastle-upon-Tyne. It is not an ostracod, but a specimen of the foraminifer, Fissurina lucida (Williamson, 1848).
Neospathodus and other Conodonta from the Saharonim Formation (Anisian-Ladinian) at Makhtesh Ramon, Negev, southern Israel
Authors: Benjamini Chaim , Chepstow-Lusty Alexander
Published: July 2010

Abstract. 63 conodont elements, referred to four multielement genera (Neospathodus, Cypridodella, Ketinella and Ellisonia) were recovered from the Upper Anisian-Lower Ladinian ‘fossiliferous limestone’ member of the Saharonim Formation, Makhtesh Ramon, Israel. The new form-species Neospathodus shagami sp. nov. is here described. Together with associated conodont elements, this species appears to show a close relationship to more advanced Gondolellaceans. Absence of true platform conodonts in the studied fauna may be due to paleoecological or phylogenetic factors.
Nematosphaeropsis downii sp. nov.: a new dinoflagellate cyst from Miocene sediments in the Bay of Biscay
Authors: Brown S.
Published: July 2010

Abstract. A new fossil dinoflagellate cyst Nematosphaeropsis downii sp. nov. is described from Miocene sediments encountered in Leg 80 of the Deep Sea Drilling Project. The age range of this species is restricted to the Early Miocene on available evidence.
A novel method of dark field illumination for a stereomicroscope and its application to a study of the pseudopodia of Reophax moniliformis Siddall (Foraminiferida)
Authors: Knight Robert
Published: July 2010

Abstract. A novel system of dark field illumination suitable for stereoscopic microscopes is described in which a beam of light is directed between the objectives. The system is used in an examination of the pattern of pseudopodia produced by the foraminifer Reophax moniliformis Siddall in which groups of pseudopodia are often seen to make abrupt obtuse angle changes of direction between about 130° and 160°.
Ultrastructure, morphology, affinities and reclassification of Cassigerinella Pokorný (Foraminiferida: Globigerinina)
Authors: Qianyu Li
Published: July 2010

Abstract. Re-examination of Cassigerinella chipolensis (Cushman & Ponton) and comparison of the ultrastructure of its morphotypes demonstrates that the species should only contain forms with a smooth surface and that those with a pore-cone surface should be distinguished as the type species, C. boudecensis Pokorný, a name which is still valid both taxonomically and stratigraphically. Strong resemblance in surface structure, aperture pattern and essential biseriality between many heterohelicids and Cassigerinella has been considered to be significant for its reclassification. Cassigerinella is, therefore, believed to have originated among the Heterohelicacea rather than in the Globigerinacea or Hantkeninacea as previously proposed by various authors. Morphological features, such as apertural modifications and coiling mode, and the characteristics of several related taxa of the species-group are discussed.
Loculicytheretta morkhoveni sp. nov. (Ostracoda) from West Africa and its relevance to the history of the Mediterranean Seaway
Authors: Witte Leendert J.
Published: July 2010

Abstract. Loculicytheretta morkhoveni sp. nov., of which the females have six loculi per valve, was found in Recent beachsand samples from Senegal and The Gambia (West Africa). A displaced specimen of the same species was present in a sample from deeper water off Guinea, where it occurred with L. aff. L. pavonia (having four loculi per valve). The presence of the Mediterranean species L. pavonia (with three loculi) in deep samples West of Gibralter is interpreted as a result of transportation by outflowing currents.The discontinuous distribution pattern of the genus Loculicytheretta is tentatively related to a reversal of the flow regime in the Mediterranean basin during the Pliocene.
On the age and correlation of the St. Erth Beds, S.W. England, based on planktonic foraminifera
Authors: Jenkins D. Graham , Whittaker John E. , Carlton R.
Published: July 2010

Abstract. The paper illustrates and describes 15 species of planktonic foraminifera from the St. Erth Beds, Cornwall, S.W. England. The overlap of the stratigraphic ranges of Globorotalia inflata (d’Orbigny), G. praehirsuta Blow, G. tosaensis Takayanagi & Saito, Pulleniatina primalis Banner & Blow, Neogloboquadrina humerosa (Takayanagi & Saito) and dextrally coiled N. pachyderma (Ehrenberg) places the age of the fauna in the Globorotalia inflata Zone, Late Pliocene. The absence of Globorotalia puncticulata (Deshayes), G. truncatulinoides (d’Orbigny) and Neogloboquadrina atlantica (Berggren) confirms this age assignment and with the presence of G. inflata (d’Orbigny), the deposition of St. Erth beds can now be accurately placed at between 2.1 and 1.9 Ma. For this paper, it has been acceped that the Pliocene-Pleistocene boundary is marked by the first evolutionary appearance of G. truncatulinoides at about 1.9 Ma.
Eripleura, a new genus of ostracod from the Upper Jurassic of England and its relationship with Procytheropteron Ljubimova
Authors: Wilkinson Ian P.
Published: July 2010

Abstract. A new genus of cytherurid ostracod, Eripleura, with the type species E. eleanorae sp. nov. from the Upper Oxfordian (? rosenkrantzi Zone) and Lower Kimmeridgian (baylei Zone) of southern England is described and compared with Procytheropteron. Two further species are described for the first time, Eripleura obliquicosta from the Lower Kimmeridgian cymodoce Zone, and Procytheropteron? elongatum from the Upper Oxfordian tenuiserratum Zone.
On Wondersella athersuchi, a new stratigraphically significant hedbergellid foraminiferan from the Cretaceous Shuaiba Formation of the Middle East
Authors: Banner F. T. , Strank A. R. E.
Published: July 2010

Abstract. Wondersella athersuchi, gen. et sp. nov., is a uniquely streptospiral hedbergellid apparently confined to the latest Aptian in pelagic micritic limestones of the Middle East. This taxon probably characterised highly stratified, oceanic-marginal environments of central, palaeoequatorial Tethys.
Distribution of modern coccolithophore assemblages in the southwest Indian Ocean off southern Africa
Authors: Friedinger Peter J. J. , Winter Amos
Published: July 2010

Abstract. Living coccolithophore assemblages were investigated in 35 surface water samples taken from the Natal Valley (southwest Indian Ocean) in January and November, 1983 and February, 1984. Fifty-nine species were recognised using a scanning electron microscope (S.E.M.). Cluster analysis revealed four different species assemblages dominated by Emiliania huxleyi, Umbilicosphaera hulburtiana, Umbellosphaera tenuis and Gephyrocapsa oceanica. Significant differences in species composition between the sampling periods are attributed to seasonal fluctuations. The regional distribution of the assemblages reflects two different océanographic regimes: 1) The Agulhas Current, which is a nearly stable feature and 2) the area of the Agulhas Return Current, characterised by rapidly changing hydrographic and ecological conditions.
Cabochonicus, a new genus for species of gemmate megaspores previously referred to Verrutriletes
Authors: Batten D. J. , Ferguson D. J. P.
Published: July 2010

Abstract. Several species of Mesozoic megaspores that are sculptured with globular, often gemmate elements are sufficiently distinct from most verrucate forms to warrant their inclusion in a genus other than Verrutriletes. Cabochonicus is erected to accommodate them with C. (al. Verrutriletes) carbunculus as the type species. The form of the gemmae, which have a glossy appearance, has been the subject of past debate with one interpretation being that they are the manifestation of fungal attack rather than sculpture. Evidence from ultrastructural studies suggests, however, that they are exinal excrescences. The spores are assumed to be the products of heterosporous lycopods and the structure of the wall layers may indicate selaginellalean affinities. The plants are more likely to have been terrestrial than aquatic or semi-aquatic.
The British Silurian ostracod genus Octonaria Jones, 1887: its revision and phylogeny
Authors: Petersen Lee E. , Lundin Robert F.
Published: July 2010

Abstract. The ostracod genus Octonaria Jones, 1887 has been grossly misunderstood because of misleading illustrations of the type-species, O. octoformis Jones, 1887. The type species is considered to be the only member of the genus presently known. All other of the nearly four dozen species and varieties which have been placed in the genus are considered to be junior synonyms of O. octoformis or members of other genera. Octonaria is presently known only from late Wenlock to early Ludlow strata of the Welsh Borderland area. It was probably derived from a “Bairdiocypris” gotlandica – like ancestor and is ancestral to the Late Silurian – Early Devonian North American genus Thlipsorothella Lundin & Petersen, 1974.