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Bitaunioceras ✝
| Description | Bitaunioceras is a genus of Permian orthocerids with a gradually expanding, straight, orthoconic shell with straight transverse sutures and a small, subcentral siphuncle with straight tubular orthochoamitic necks. From Wikipedia article at https://en.wikipedia.org/wiki/Bitaunioceras, 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 : Cephalopoda : Orthoceratidae : Bitaunioceras | ||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Animalia : Mollusca : Cephalopoda : Pseudorthocerida : Spyroceratidae : Bitaunioceras | ||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | ||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Bitaunioceras Shimizu & Obata, 1936 | ||||||||||||||||||||||||||||||||||||||||||
| Name Published In | J. Geol. Soc. Japan, 43, no. 508 | ||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extinct | ||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 7 | ||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 296 - 290 Ma Permian | ||||||||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 265 - 260 Ma Permian | ||||||||||||||||||||||||||||||||||||||||||
| Motility | fast-moving (based on Cephalopoda) | ||||||||||||||||||||||||||||||||||||||||||
| Vision | well-developed (based on Cephalopoda) | ||||||||||||||||||||||||||||||||||||||||||
| Diet | carnivore (based on Cephalopoda) | ||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | aragonite (based on Cephalopoda) | ||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | J. J. Sepkoski, Jr. 2002. A compendium of fossil marine animal genera. Bulletins of American Paleontology 363:1-560 | ||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Bitaunioceras |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Bitaunioceras coahuilense ✝ species | accepted (GBIF) listed (PBDB) | 5 | 279 Ma Permian | 265 Ma Permian | |
| Bitaunioceras inordinatum ✝ species | accepted (GBIF) listed (PBDB) | 4 | 279 Ma Permian | 279 Ma Permian | |
| Bitaunioceras krotowi ✝ species | accepted (GBIF) listed (PBDB) | ||||
| Bitaunioceras texanum ✝ species | accepted (GBIF) listed (PBDB) | 1 | 290 Ma Permian | 290 Ma Permian | |
| Bitaunioceras undulatum ✝ species | accepted (GBIF) listed (PBDB) | 1 | 296 Ma Permian | 296 Ma Permian | |
| Bitaunioceras zonatum ✝ species | listed (PBDB) | 4 | 272 Ma Permian | 269 Ma Permian | |
| Orthoceras zonatum species | accepted (GBIF) | No associated record in PBDB | |||
Synonymy List
| Year | Name and Author |
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| 1936 | Bitaunioceras Shimizu and Obata p. 27 |
| 1964 | Bitaunioceras Teichert et al. p. 226 |
| 1996 | Bitaunioceras Niko et al. p. 523 |
| 2002 | Bitaunioceras Sepkoski, Jr. |
References
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!
