Hemicosmorthoceras
From Wikipedia, the free encyclopedia
| Hemicosmorthoceras Temporal range: Ordovician-Devonian | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | †Orthocerida |
| Family: | †Sphaerorthoceratidae |
| Genus: | †Hemicosmorthoceras Foerste (1925) |
Hemicosmorthoceras is an extinct genus of actively mobile carnivorous cephalopod, essentially a nautiloid, that lived in what would be present day Europe during the Silurian to Devonian from 422.9—412.3 mya, existing for approximately 10.6 million years.[1]
Hemicosmorthoceras was named by Foerste (1925). It was assigned to Orthocerida by Teichert et al. (1964); and to Endocerida by Sepkoski (2002).[2]
