Tretoceras
From Wikipedia, the free encyclopedia
| Tretoceras Temporal range: eM Ordovician | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | †Orthocerida |
| Genus: | †Tretoceras Salter (1958) |
Tretoceras is an extinct genus of cephalopods included in the Orthocerida that lived in what would be Europe during the early Middle Ordovician, fossils of which have been found only in Austria.
