Rank Genus | Phylum Chordata Order Even-toed ungulate | |
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Prosynthetoceras is an extinct genus of Artiodactyla, of the family Protoceratidae, endemic to North America from the early Miocene epoch (Hemingfordian to Barstovian stages) 20.6—13.6 Ma, existing for approximately 7 million years.
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Taxonomy
Prosynthetoceras was named by Patton (1967) [named as subgenus of Synthetoceras by Frick 1937; raised to genus level (?)]. It is not extant. It was assigned to Protoceratidae by Patton (1967) and Carroll (1988); and to Synthetoceratini by Webb (1981), Prothero (1998), Webb et al. (2003) and Prothero and Ludtke (2007).
Morphology
In appearance, Prosynthetoceras looked much like Syndyoceras, Kyptoceras, and Synthetoceras with rostral or snout horns and cranial horns above the orbital sockets.
Body mass
Four fossil specimens of Prosynthetoceras were measured by M. Mendoza, C. M. Janis, and P. Palmqvist for body mass.