Protoceratidae

Protoceratids Temporal range: Middle Eocene–Early Pliocene[1] PreꞒ Ꞓ O S D C P T J K Pg N
Synthetoceras
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Family:	†Protoceratidae
Subfamilies, Tribes and Genera
†Leptotragulinae †Heteromeryx †Leptoreodon †Leptotragulus †Poabromylus †Toromeryx †Trigenicus †Protoceratinae †Paratoceras †Protoceras †Pseudoprotoceras †Synthetoceratinae †Kyptoceratini †Kyptoceras †Syndyoceras †Synthetoceratini †Lambdoceras †Prosynthetoceras †Synthetoceras
Range of Protoceratidae based on fossil record.

Protoceratidae is an extinct family of herbivorous North American artiodactyls (even-toed ungulates) that lived during the Eocene through Pliocene. While early members of the group were hornless, in later members males developed elaborate cranial ornamentation. They are variously allied with Ruminantia or Tylopoda.^[2]