Cranioceras

Cranioceras; Temporal range: Barstovian–Hemphillian; ~
	Life restoration of Cranioceras unicornis
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Family:	†Dromomerycidae
Tribe:	†Cranioceratini
Genus:	†; Matthew, 1918
Species
	†C. unicornis Matthew, 1918(type); †C. clarendonensis Frick, 1937; †C. pawniensis Frick, 1937; †C. teres (Cope, 1874);

Cranioceras is an extinct genus of artiodactyl from the Miocene to the Pliocene in the United States.

Sources

After the Dinosaurs: The Age of Mammals (Life of the Past) by Donald R. Prothero
The Book of Life: An Illustrated History of the Evolution of Life on Earth, Second Edition by Stephen Jay Gould