Pseudoprotoceras fossil map
Where fossils of Pseudoprotoceras have been found, shown on the Earth as it looked about 30 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 30 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 | 39.7–33.9 million years ago (Bartonian to Priabonian) |
| Periods | Paleogene |
| Family | Protoceratidae |
| Named by | Cook 1934 |
| Fossil records | 44 occurrences at 14 locations (PBDB) |
| Found in | United States, Canada |
| Rock formations | Chadron, White River, txn:42572, Cypress Hills, Chambers Tuff, Galisteo |
About Pseudoprotoceras
Pseudoprotoceras is an extinct genus of Artiodactyla, of the family Protoceratidae, endemic to central North America. It lived during the Late Eocene 37.2—33.9 Ma, existing for approximately 3 million years. Pseudoprotoceras resembled hornless deer, but were more closely related to camelids.
Body mass was similar to other Eocene protoceratids such as Heteromeryx and Poabromylus yet greater than Leptotragulus and Leptoreodon. Miocene members were apparently larger as well.
Text in “About” is quoted from the Wikipedia article Pseudoprotoceras (revision 1376838544), 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: Q7255456.
