Prosynthetoceras
| Prosynthetoceras Temporal range:
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|---|---|
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| Fossil tooth of Prosynthetoceras cf. texanus | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Artiodactyla |
| Family: | †Protoceratidae |
| Genus: | †Prosynthetoceras Patton 1967 |
| Species | |
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| Range of Prosynthetoceras based on fossil record | |
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.