Trigenicus fossil map
Where fossils of Trigenicus 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 | 37–33.9 million years ago (Priabonian) |
| Periods | Paleogene |
| Family | Protoceratidae |
| Named by | Douglass 1903 |
| Fossil records | 30 occurrences at 10 locations (PBDB) |
| Found in | United States, Canada |
| Rock formations | Renova, White River, Cypress Hills, txn:42572, Chadron, Cook Ranch |
About Trigenicus
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. Trigenicus resembled deer, but were more closely related to camelids.
Text in “About” is quoted from the Wikipedia article Trigenicus (revision 1258223457), 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: Q7841682.
