| Leptotragulus 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: | †Leptotragulus Scott & Osborn, 1887 |
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| Range of Leptotragulus based on fossil record | |
Leptotragulus is an extinct genus of protoceratid, endemic to North America. It lived during the Middle Eocene epoch (Uintan to Chadronian stage) 40.2—33.9 Ma, existing for approximately 6 million years.[1]
Leptotragulus resembled deer. However, they were more closely related to camelids. In addition to having horns in the more usual place,[clarification needed] many protoceratids had additional, rostral horns above the orbital cavity. This genus, as well as many other Leptotragulines, was completely hornlees.