| Trigenicus Temporal range:
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Artiodactyla |
| Family: | †Protoceratidae |
| Genus: | †Trigenicus Douglass 1903 |
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Trigenicus is an extinct genus of small artiodactyl in the family Protoceratidae, endemic to North America. It lived from the Late Eocene 37.2—33.9 Ma, existing for approximately 3 million years.[1] Trigenicus resembled deer, but were more closely related to camelids.