Eobasileus
| Eobasileus Temporal range: Bridgerian to Uintan | |
|---|---|
| A skull from the Field Museum | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Mammalia | 
| Order: | †Dinocerata | 
| Family: | †Uintatheriidae | 
| Subfamily: | †Uintatheriinae | 
| Genus: | †Eobasileus Cope, 1872 | 
| Species: | †E. cornutus | 
| Binomial name | |
| †Eobasileus cornutus Cope, 1872 | |
| Synonyms | |
| Uintatherium cornutus | |
Eobasileus cornutus ("horned dawn-king") was a prehistoric species of dinocerate mammal.