Extinct genus of nautiloid From Wikipedia, the free encyclopedia
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.
| Cyrtoceras Temporal range: [dead link] | |
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| Digital life restoration of "Cyrtoceras sp" | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | †Oncocerida |
| Genus: | †Cyrtoceras Conrad, 1838 |
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