Acritohippus fossil map
Where fossils of Acritohippus 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 | 23.04–4.7 million years ago (Aquitanian to Zanclean) |
| Periods | Neogene |
| Family | Equidae |
| Named by | Kelly 1995 |
| Fossil records | 218 occurrences at 26 locations (PBDB) |
| Found in | United States, Canada |
| Rock formations | Barstow, Caliente, Wood Mountain, Mascall, Olcott, Sheep Creek |
About Acritohippus
Acritohippus is an extinct genus of Miocene area equine from North America. Fossils of Acritohippus have been found in Florida, New Mexico, Montana, California, and Oregon, where its fossils were first unearthed and described as a species of Merychippus back in 1928. It was a grazer that ate C4 grasses.
Text in “About” is quoted from the Wikipedia article Acritohippus (revision 1371790253), 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: Q30595224.
