Paradnatoceras
From Wikipedia, the free encyclopedia
| Paradnatoceras Temporal range: Ordovician | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | †Orthocerida |
| Genus: | †Paradnatoceras |
Paradnatoceras is an extinct straight-shelled cephalopod genus that lived in what would become China during the Ordovician from 478.6 to about 461 mya, existing for approximately 17.6 Ma.[1]
Paradnatoceras is included in the Orthocerida according to Sepkoski (2002).[2] Inclusion of the Orthocerida in the subclass Orthoceratoidea is according to more recent taxonomic opinion.[3] In older taxonomies, e.g.,[4] the Orthocerida were included in the Nautiloidea.
