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Cyrtonybyoceras
Description | Cyrtonybyoceras is a genus of slightly exogastric members of the Wutinoceratidae, a family of actinocerids and probably derived from an earlier Wutinoceras . The shell of Cyrtonybyoceras is curved slightly upwardly and is slightly compressed. Sutures slope toward the aperture, from the dorsum to the venter. The siphuncle is ventral but not marginal, in general form like that of Nybyoceras. Upper and lower septal necks are recumbent or narrowly free. The canal system is reticular, characteristic of the Wutinoceratidae. From Wikipedia article at https://en.wikipedia.org/wiki/Cyrtonybyoceras, which is released under the Creative Commons Attribution-Share-Alike License 3.0. | |||||||
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Source Data |
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Rank | genus | |||||||
Taxonomy (GBIF) | Life : Animalia : Mollusca : Cyrtonybyoceras | |||||||
Taxonomic Status (GBIF) | accepted | |||||||
Classification (GBIF) |
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Scientific Name | Cyrtonybyoceras Shimizu & Obata, 1935 | |||||||
Name Published In | J. Shanghai Sci. Inst., (2) 2 (1) | |||||||
Wikipedia | https://en.wikipedia.org/wiki/Cyrtonybyoceras |
Subtaxa
Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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Cyrtonybyoceras curviseptatum species | accepted (GBIF) | No associated record in PBDB | |||
Cyrtonybyoceras oklahomae species | accepted (GBIF) | No associated record in PBDB |
References
Nomenclator Zoologicus. A list of the names of genera and subgenera in zoology from the tenth edition of Linnaeus, 1758 to the end of 2004. Digitised by uBio from vols. 1-9 of Neave (ed.), 1939-1996 plus supplementary digital-only volume. http://ubio.org/NomenclatorZoologicus (as at 2006). - via The Interim Register of Marine and Nonmarine Genera |
J. Shanghai Sci. Inst., (2) 2 (1) - via The Interim Register of Marine and Nonmarine Genera |
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!