| Cyrtoceras Temporal range: | |
|---|---|
 | |
| Digital life restoration of "Cyrtoceras sp" | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | †Oncocerida |
| Genus: | †Cyrtoceras Conrad, 1838 |
| Type species | |
| †Cyrtoceras minneapolis Whiteaves, 1890 | |
| Species[2] | |
| |
Cyrtoceras is an extinct genus of oncoceridan nautiloids that lived from the middle Ordovician to the middle Devonian, in Africa, Europe, North America and South America.
References
- ↑ Teiichi KOBAYASHI (1987). "The Ancestry of the Cephalopoda: From Helcionella to Plectronoceras". Proceedings of the Japan Academy, Series B: Physical and Biological Sciences. 63 (5): 135. doi:10.2183/pjab.63.135.
- ↑ "Cyrtoceras". Global Biodiversity Information Facility. Retrieved 6 November 2021.
Sources
- 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
- Cyrtoceras in the Paleobiology Database
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