| Eothinoceratidae Temporal range: Early -Middle Ordovician
| |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | †Cyrtocerinida |
| Family: | †Eothinoceratidae Ulrich, Foerste, Miller & Unklesbay, 1944 |
| Genera | |
|
See text | |
Eothinoceratidae is a family of Lower Ordovician nautiloid cephalopods included in the Cyrtocerinida. The family was originally established for the genus Eothinoceras.