Cyrtoceras
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| Cyrtoceras Temporal range: [dead link]
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| Digital life restoration of "Cyrtoceras sp" | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | †Oncocerida |
| Genus: | †Cyrtoceras Conrad, 1838 |
Cyrtoceras is an dubious extinct genus of oncoceridan nautiloids that was used for fossils from the middle Ordovician to the middle Devonian, in Africa, Europe, North America and South America.
As for 1964, this genus is no longer considered as valid, as it has not been correctly established.[2][3]
References
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Sources
[edit | edit source]- Fossils (Smithsonian Handbooks) by David Ward
- Fossils (A Golden Guide from St. Martin's Press) by Frank H. T. Rhodes, Paul R. Shaffer, Herbert S. Zim, and Raymond Perlman
- Aquagenesis: The Origin and Evolution of Life in the Sea by Richard Ellis
External links
[edit | edit source]- Cyrtoceras in the Paleobiology Database
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 | This prehistoric cephalopod-related article is a stub. You can help Wikipedia by expanding it. |
Categories:
- Prehistoric nautiloid genera
- Devonian cephalopods
- Ordovician cephalopods
- Paleozoic cephalopods of Africa
- Paleozoic cephalopods of Europe
- Paleozoic cephalopods of North America
- Paleozoic cephalopods of South America
- Silurian cephalopods
- Middle Ordovician genus first appearances
- Middle Devonian genus extinctions
- Fossils of Georgia (U.S. state)
- Paleozoic life of Manitoba
- Paleozoic life of Nunavut
- Prehistoric cephalopod stubs