Ustatochoerus fossil map
Where fossils of Ustatochoerus have been found, shown on the Earth as it looked about 15 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 15 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 | 29.5–4.7 million years ago (Rupelian to Zanclean) |
| Periods | Paleogene, Neogene |
| Family | Merycoidodontidae |
| Named by | Schultz and Falkenbach 1941 |
| Fossil records | 256 occurrences at 52 locations (PBDB) |
| Found in | United States |
| Rock formations | Ash Hollow, txn:42488, Valentine, Tesuque, Dove Spring, Delaho |
About Ustatochoerus
Ustatochoerus is an extinct genus of oreodont of the family Merycoidodontidae, endemic to North America. It lived during the late Oligocene to Miocene, 24–10.3 mya, existing for approximately 14 mya. Fossils are widespread through the central and western United States.
Text in “About” is quoted from the Wikipedia article Ustatochoerus (revision 1345022706), 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: Q96413103.
