Leptotragulus fossil map
Where fossils of Leptotragulus have been found, shown on the Earth as it looked about 45 million years ago and on today’s map.
Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 45 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →
| Group | Early mammals |
|---|---|
| Lived | 45.9–33.9 million years ago (Lutetian to Priabonian) |
| Periods | Paleogene |
| Family | Protoceratidae |
| Named by | Scott and Osborn 1887 |
| Fossil records | 48 occurrences at 10 locations (PBDB) |
| Found in | United States, Canada |
| Rock formations | Uinta, Wagon Bed ("Tepee Trail"), Wiggins, Cypress Hills, Chadron, txn:42572 |
About Leptotragulus
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.
Leptotragulus resembled deer, but were more closely related to camelids. This genus, as well as many other Leptotragulines, was completely hornless.
Text in “About” is quoted from the Wikipedia article Leptotragulus (revision 1376840319), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q6528587.
