Eothinoceratidae
| 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.