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Cyrtogomphoceras ✝
Description | Cyrtogomphoceras is a genus of nautiloid cephalopods, recognized by its large breviconic shell with a notable endogastric curvature. The shell is fusiform in profile, reaching maximum width at or near the base of body chamber, which narrows toward the aperture. The siphuncle is large and slightly removed from the ventral side, that with the concave longitudinal profile. Siphuncle segments are short, as are chambers; septal necks recurved, connecting rings thick, bullettes at the apical end of the rings swollen. Cameral deposits are lacking. From Wikipedia article at https://en.wikipedia.org/wiki/Cyrtogomphoceras, 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 : Nautilida : Nautilidae : Cyrtogomphoceras | ||||||||||||||||||||||||||||||||||||||||||
Taxonomy (PBDB) | Life : Animalia : Mollusca : Cephalopoda : Discosorida : Cyrtogomphoceratidae : Cyrtogomphoceras | ||||||||||||||||||||||||||||||||||||||||||
Taxonomic Status (GBIF) | accepted | ||||||||||||||||||||||||||||||||||||||||||
Classification (PBDB,GBIF) |
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Scientific Name | Cyrtogomphoceras Foerste, 1924 | ||||||||||||||||||||||||||||||||||||||||||
Name Published In | Denison Univ. Bull. J. Sci. Lab., 24, no. 5 | ||||||||||||||||||||||||||||||||||||||||||
Opinions (PBDB) |
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Status (PBDB) | extinct | ||||||||||||||||||||||||||||||||||||||||||
Taxon Size (PBDB) | 3 | ||||||||||||||||||||||||||||||||||||||||||
First Recorded Appearance | 470 - 450 Ma Ordovician | ||||||||||||||||||||||||||||||||||||||||||
Last Recorded Appearance | 450 - 443 Ma Paleozoic | ||||||||||||||||||||||||||||||||||||||||||
Environment | marine (based on Discosorida) | ||||||||||||||||||||||||||||||||||||||||||
Motility | actively mobile (based on Discosorida) | ||||||||||||||||||||||||||||||||||||||||||
Vision | well-developed (based on Cephalopoda) | ||||||||||||||||||||||||||||||||||||||||||
Diet | carnivore (based on Cephalopoda) | ||||||||||||||||||||||||||||||||||||||||||
Taphonomy | aragonite (based on Discosorida) | ||||||||||||||||||||||||||||||||||||||||||
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/Cyrtogomphoceras |
Fossil Distribution
Subtaxa
Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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Cyrtogomphoceras contractum species | accepted (GBIF) | No associated record in PBDB | |||
Cyrtogomphoceras landerense species | accepted (GBIF) | No associated record in PBDB | |||
Cyrtogomphoceras magnum ✝ species | accepted (GBIF) listed (PBDB) | 1 | 461 Ma Middle Ordovician | 461 Ma Middle Ordovician | |
Cyrtogomphoceras minor species | accepted (GBIF) | No associated record in PBDB | |||
Cyrtogomphoceras perexpansum species | accepted (GBIF) | No associated record in PBDB | |||
Cyrtogomphoceras popoagiense species | accepted (GBIF) | No associated record in PBDB | |||
Cyrtogomphoceras troedssoni ✝ species | accepted (GBIF) listed (PBDB) | 1 | 452 Ma Late/Upper Ordovician | 452 Ma Late/Upper Ordovician | |
Cyrtogomphoceras vicinum species | accepted (GBIF) | No associated record in PBDB |
Synonymy List
Year | Name and Author |
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1924 | Cyrtogomphoceras Foerste |
1964 | Cyrtogomphoceras Teichert et al. p. 328 |
2002 | Cyrtogomphoceras 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!