Prosynthetoceras

Prosynthetoceras is an extinct genus of Artiodactyla, of the family Protoceratidae, endemic to North America. It lived from the Early to Middle Miocene 20.6—13.6 Ma, existing for approximately 7 million years.^[1] In appearance, Prosynthetoceras looked much like Syndyoceras, Kyptoceras, and Synthetoceras with three horns, one on the snout, and two above the eyes.

Prosynthetoceras Temporal range: Early Miocene–Middle Miocene PreꞒ Ꞓ O S D C P T J K Pg N
Fossil tooth of Prosynthetoceras cf. texanus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Family:	†Protoceratidae
Genus:	†Prosynthetoceras Patton 1967
Species
P. francisi Frick 1937 P. orthrionanus Albright 1999 P. texanus Hay 1924
Range of Prosynthetoceras based on fossil record