The ‘Oxycythereis’ problem: taxonomy and palaeobiogeography of deep‐sea ostracod genera Pennyella and Rugocythereis |
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| Authors: | Moriaki Yasuhara Gene Hunt Hisayo Okahashi Simone N. Brandão |
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| Affiliation: | 1. Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC, 20013‐7012 USA;2. School of Biological Sciences, Swire Institute of Marine Science, and Department of Earth Sciences, University of Hong Kong, Hong Kong SAR, China;3. Biozentrum Grindel und Zoologisches Museum, Universit?t Hamburg, Martin‐Luther‐King‐Platz 3, Hamburg, 20146 Germany;4. Senckenberg am Meer, Deutsches Zentrum für Marine Biodiversit?tsforschung (DZMB), Südstrand 44, Wilhelmshaven, 26382 Germany |
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| Abstract: | Systematic revision of the globally distributed deep‐sea ostracod genera Pennyella Neale, 1974 and Rugocythereis Dingle, Lord and Boomer, 1990, which have been considered to correspond, at least partially, to nomen nudum but widely used genus name ‘Oxycythereis,’ was conducted to reduce taxonomic uncertainty of these important components of the Modern and fossil deep‐sea ostracod community. Approximately 100 specimens from 18 species were examined, ranging in age from the Cretaceous to the present day. Nine new species are described: Pennyella rexi, Pennyella sanfordae, Pennyella liowae, Pennyella schellenbergi, Pennyella majorani, Pennyella iani, Pennyella ayressi, Rugocythereis melonis and Rugocythereis zarikiani. Emended generic concepts of Pennyella and Rugocythereis are proposed, and the palaeobiogeographical distributions of these two genera are discussed. |
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| Keywords: | Deep sea Ostracoda taxonomy palaeobiogeography
Pennyella
Rugocythereis
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