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  • 1
    Publication Date: 2024-01-12
    Description: Reworked phosphoritic concretions from the base of the Diest Sands (Miocene) at Ramsel (Belgium) yield many magnificent crabs and molluscs in mould preservation. Two species of crabs are present, viz. Mursia lienharti (Bachmayer, 1961) and Tasadia carniolica (Bittner, 1884), Tasadia being a new genus. The palaeoecology of the decapod fauna is discussed and compared with Paratethyan occurrences. The age of the fauna in the concretions as indicated by the mollusc fauna is Middle Miocene, Hemmoorian, youngest Oxlundian. A similar fauna, also in reworked concretions, is known from the base of the Deurne Sands at Borgerhout (Antwerpen city area). A new coleoid cephalopod species, Spirulirostra baetensi sp. nov., is described. The European Spirulirostra and Spirulirostrina species are discussed.
    Repository Name: National Museum of Natural History, Netherlands
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  • 2
    Publication Date: 2024-01-12
    Description: The gastropod Heliconoides linneensis sp. nov. (Mollusca, Thecosomata) is described from Late Oligocene (Chattian) deposits of several localities in the southwestern Aquitaine Basin (France, Landes).
    Keywords: Mollusca ; Gastropoda ; Thecosomata ; pteropod ; new species ; Oligocene ; France
    Repository Name: National Museum of Natural History, Netherlands
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  • 3
    Publication Date: 2024-01-12
    Description: Two new species and a new subspecies of the Astartidae (Mollusca, Bivalvia) are described from reworked shell material of beaches and estuaries in the Province of Zeeland, The Netherlands. Nomenclatural notes concerning some other species of the same family are added. Furthermore an attempt is made to demonstrate the phylogenetical development of the Astarte (Isocrassina) fusca and the A. (I.) omalii group from the younger Caenozoic (Miocene to Quaternary) of the North Sea Basin.
    Repository Name: National Museum of Natural History, Netherlands
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  • 4
    Publication Date: 2024-01-12
    Description: The author gives an enumeration of the molluscan species of the \'Twistringer Schichten" (Miocene, Northern Germany). Many of the species listed here are new to this particular facies of the Miocene of the North Sea Basin. The material studied was collected in the claypits of the brickworks at Twistringen and Woltrup. A short stratigraphical review precedes the list of species. In the systematical part nomenclatural notes and descriptions of seventeen new species and subspecies are brought together.
    Repository Name: National Museum of Natural History, Netherlands
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  • 5
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    In:  Scripta Geologica. Special Issue vol. 7, pp. 161-175
    Publication Date: 2024-01-12
    Description: A borehole was drilled at Rotterdam in 1955 as a demonstration during the E55 exhibition. Holoplanktonic molluscs (pteropods) were found to be present in the interval 504.5-655.0 m below rotary table (= RT). The upper sample of Middle Eocene (Lutetian) age yielded just a few unidentifiable limacinids. The section between 507.5-607.0 m, of Early Eocene (Ypresian) age, yielded poorly preserved pteropods and demonstrated that the complete interval belongs to pteropod zone 9. Apart from the most abundant species, Camptoceratops priscus, which is the index taxon of pteropod zone 9, the section yielded Heliconoides mercinensis and Limacina taylori, which are known to accompany the index species. Two further limacinid species are described as new to science, viz. Limacina erasmiana sp. nov. and L. guersi sp. nov., to date not known from elsewhere in the North Sea Basin. The occurrence of L. pygmaea in a restricted interval (569.0-574.0 m-RT) is remarkable; it is generally considered to be of Lutetian age, but also is found in the Ypresian of Gan, southwest France. Its occurrence in the E55 section is explained as a \xe2\x80\x98sealevel related molluscan plankton event\xe2\x80\x99, allowing species of oceanic distribution to enter the basin during sea level high stands, as was recently also demonstrated for several Oligocene pteropods.
    Keywords: Mollusca ; Gastropoda ; Thecosomata ; pteropods ; The Netherlands ; Eocene ; Ypresian ; biostratigraphy
    Repository Name: National Museum of Natural History, Netherlands
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  • 6
    Publication Date: 2024-01-12
    Description: Holoplanktonic Mollusca collected from c. 60 localities in Cenozoic (Eocene-Ypresian to Miocene-Serravallian) rocks of the Aquitaine Basin (southwest France) are represented by 75 taxa: five supposed Heteropoda (Pterotracheoidea) and 70 Pteropoda (69 Thecosomata, one Gymnosomata). All Heteropoda and 19 species of the Pteropoda had to be included in open nomenclature or with a query. Twelve species of pteropods are described as new to science: Heliconoides daguini sp. nov., H. merlei sp. nov., H. pyrenaica sp. nov. and Limacina? vegrandis sp. nov. from the Ypresian; Creseis antoni sp. nov. and Vaginella gaasensis sp. nov. from the Rupelian; Clio lozoueti sp. nov. and Clio vasconiensis sp. nov. from the Chattian; Diacrolinia cluzaudi sp. nov., from the Aquitanian; Creseis roesti sp. nov. from the Aquitanian/Burdigalian; and Heliconoides mermuysi sp. nov. and Creseis tugurii sp. nov. from the Early Burdigalian. Neotypes are designated for Diacrolinia aquensis, D. orbignyi and Vaginella depressa. The Aquitaine Basin assemblages are correlated with the existing holoplanktonic mollusc zonation for the North Sea Basin. Zones 9 (Ypresian), 10 (Lutetian) and 11/12 (Priabonian) could be recognised in the Aquitaine Basin Eocene, zones 15a (Rupelian) and 16b (Chattian) in the Oligocene, and zones 17 (Aquitanian-Burdigalian), 18 (Late Burdigalian), 18a (Langhian) and 19 (Serravallian) in the Miocene. Zone 17 could be subdivided on the basis of occurrences observed in the Aquitaine Basin, into three subzones, 17a (Aquitanian), 17b (earliest Burdigalian) and 17c (middle Burdigalian).\n\nDes mollusques holoplanctoniques collect\xc3\xa9s dans environ 60 localit\xc3\xa9s du C\xc3\xa9nozo\xc3\xafque (Eoc\xc3\xa8ne-Ypr\xc3\xa9sien \xc3\xa0 Mioc\xc3\xa8ne-Serravallien) du Bassin d\xe2\x80\x99Aquitaine (sud-ouest de La France) sont repr\xc3\xa9sent\xc3\xa9s par 75 taxons: cinq Heteropoda (Pterotracheoidea) suppos\xc3\xa9s et 70 Pteropoda (69 Thecosomata, une Gymnosomata). Tous les Heteropoda et 19 esp\xc3\xa8ces de Pteropoda ont d\xc3\xbb \xc3\xaatre laiss\xc3\xa9s en nomenclature ouverte ou comportent un doute. Douze esp\xc3\xa8ces de pt\xc3\xa9ropodes sont d\xc3\xa9crites comme nouvelles pour la science: Heliconoides daguini sp. nov., H. merlei sp. nov., H. pyrenaica sp. nov. et Limacina? vegrandis sp. nov., de l\xe2\x80\x99Ypr\xc3\xa9sien; Creseis antoni sp. nov. et Vaginella gaasensis sp. nov., du Rup\xc3\xa9lien; Clio lozoueti sp. nov. et Clio vasconiensis sp. nov. du Chattien; Diacrolinia cluzaudi sp. nov., de l\xe2\x80\x99Aquitanien; Creseis roesti sp. nov. de l\xe2\x80\x99Aquitanien/Burdigalien; et Heliconoides mermuysi sp. nov. et Creseis tugurii sp. nov., du Burdigalien inf\xc3\xa9rieur. Des n\xc3\xa9otypes sont d\xc3\xa9sign\xc3\xa9s pour Diacrolinia aquensis, D. orbignyi et Vaginella depressa. Les assemblages du Bassin d\xe2\x80\x99Aquitaine sont corr\xc3\xa9l\xc3\xa9s avec la zonation de mollusques holoplanctoniques existant pour le Bassin de la Mer du Nord. Les zones 9 (Ypr\xc3\xa9sien), 10 (Lut\xc3\xa9tien) et 11/12 (Priabonien) ont pu \xc3\xaatre reconnues dans l\xe2\x80\x99\xc3\x89oc\xc3\xa8ne du Bassin d\xe2\x80\x99Aquitaine, les zones 15a (Rup\xc3\xa9lien) et 16b (Chattien) dans l\xe2\x80\x99Oligoc\xc3\xa8ne, et les zones 17 (Aquitanien-Burdigalien), 18 (Burdigalien sup\xc3\xa9rieur), 18a (Langhien) et 19 (Serravallien) dans le Mioc\xc3\xa8ne. La zone 17 a pu \xc3\xaatre subdivis\xc3\xa9e sur la base des occurrences observ\xc3\xa9es en Aquitaine en trois sous-zones, 17a (Aquitanien), 17b (Burdigalien basal) et 17c (Burdigalien moyen).
    Keywords: Heteropoda ; Pteropoda ; taxonomy ; biostratigraphy ; new species ; Aquitaine Basin ; Eocene-Miocene
    Repository Name: National Museum of Natural History, Netherlands
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  • 7
    Publication Date: 2024-01-12
    Description: Tertiary sediments (Oligocene - Pliocene) in the Gelderse Achterhoek and Twente (Winterswijk - Almelo region, eastern part of the Netherlands, provinces of Gelderland and Overijssel) are lithologically subdivided in a number of members. In this paper the Ratum Member, the Brinkheurne Member, the Winterswijk Member, the Aalten Member, the Eibergen Member, the Zenderen Member and the Lievelde Member are introduced. The Delden Member, already introduced in 1860, is redefined; this member occurs between the Zenderen Member and the Lievelde Member. The Aalten Member is subdivided in two new beds, the Miste Bed and the Stemerdink Bed respectively. For each of the lithological units a stratotype and some reference sections are designated. In the palaeontological part the fossil content of the lithological units is described. In the Brinkheurne Member two new biozones are introduced: the Cyclocardia kickxi - Astarte kickxi Assemblage Zone and the Serpula septaria - Ancistrosyrinx volgeri Assemblage Zone. In the Aalten Member four new biozones are distinguished: the Hiatella arctica Acme Zone, the Astarte radiata Acme Zone, the Spisula sp. Acme Zone and the Limopsis aurita Acme Zone. Finally, the lithological units described in this paper are correlated with deposits in Belgium, Germany, and Denmark by means of lithological and palaeontological characteristics.
    Repository Name: National Museum of Natural History, Netherlands
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  • 8
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    In:  Scripta Geologica vol. 91, pp. 1-76
    Publication Date: 2024-01-12
    Description: All Tertiary euthecosomatous gastropods from the Australian continent known to the author are described. The species introduced by Ralph Tate (1887) are revised. Altogether 18 species are discussed. A new genus, Spoelia, and five new species, viz. Limacina curryi, L. lunata, L. tatei, Spoelia torquayensis and Vaginella victoriae, are introduced. Potential tools in the Australian pteropod fauna for a future biostratigraphical zonation and for long distance correlations are indicated. In an annex Vaginella sannicola sp. nov. is introduced for specimens from the Miocene of Gargano, Italy, which were incorrectly identified as V. eligmostoma Tate by d\'Alessandro & Robba, 1980.
    Repository Name: National Museum of Natural History, Netherlands
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  • 9
    Publication Date: 2024-01-12
    Description: In the early thirties the late Polish palaeontologist Wilhelm Krach started the publication of a long series of papers on the mollusc faunas and the biostratigraphy of the Tertiary deposits in Poland, predominantly focusing on the Miocene of the Carpathian Foredeep. In several of these papers holoplanktonic molluscs (\'pteropods\') are mentioned. Gradually Krach realised the potential value of these organisms in regional and interregional biostratigraphy, resulting in a special paper on the subject, published in 1981.\nIn the present paper a substantial part of Krach\'s pteropod material, housed in the Institute of Geological Sciences at Krak\xc3\xb3w, is systematically revised and biostratigraphically interpreted according to modern standards and in accordance with research outside Poland.
    Repository Name: National Museum of Natural History, Netherlands
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  • 10
    Publication Date: 2024-01-12
    Description: Fifteen samples taken from interbedded sandstone, siltstone and claystone of Pliocene age, underlying the Bolinao Limestone, at the localities Anda, Roxas and Tiep (Pangasinan, Luzon, Philippines), were analysed for holoplanktonic gastropods; they have yielded 50 species (16 Heteropoda, one Janthinidae, and 33 Pteropoda, the latter consisting of 30 Euthecosomata, two Pseudothecosomata and one Gymnosomata). Faunal diversity between the localities sampled is restricted and explained by differences in sample size and/or preservation. The time interval represented by all samples taken together is postulated to have been brief. Fifteen new taxa (= 30% of the total number of encountered holoplanktonic molluscan species) are erected; Atlanta lingayanensis sp. nov., A. richteri sp. nov., A. seapyi sp. nov., Heliconoides sondaari sp. nov., Striolimacina andaensis sp. nov., Hyalocylis marginata sp. nov., Cavolinia baniensis sp. nov., C. perparvula sp. nov., C. shibatai sp. nov., Diacavolinia pristina sp. nov., Diacria italica Grecchi, 1982 f. fissicostata f. nov., D. microstriata sp. nov., D. paeninsula sp. nov., D. philippinensis sp. nov. and Sphaerocina convolvula sp. nov. Calibration with vertical ranges of holoplanktonic molluscan species as now known enables an age assignment for the Pangasinan assemblages of Pliocene (Piacenzian). A number of species, in particular Atlantidae (Heteropoda), were so far known only from Quaternary or extant assemblages. Comparisons with published data for Japan allow the conclusion that the Philippine assemblages are coeval with the Takanabe Member (Miyazaki Group) in Miyazaki Prefecture (southwest Japan), a unit which incidentally has yielded far fewer species. The absence of bathypelagic holoplanktonics, as well as littoral benthic species indicate an epi- to upper mesopelagic setting, with depth ranges extending to a maximal depth of c. 200 to 300 m.
    Keywords: Mollusca ; Pliocene ; Philippines ; taxonomy ; new species
    Repository Name: National Museum of Natural History, Netherlands
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