Haplohippus fossil map
Where fossils of Haplohippus 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 | 48.07–37 million years ago (Lutetian to Priabonian) |
| Periods | Paleogene |
| Family | Equidae |
| Named by | McGrew 1953 |
| Fossil records | 4 occurrences at 2 locations (PBDB) |
| Found in | United States |
| Rock formations | Chambers Tuff, Clarno |
About Haplohippus
Haplohippus is an extinct genus of the modern horse family Equidae, that lived in the Eocene, from 42 to 38 million years ago. Fossil remains of Haplohippus have been found in the Clarno Formation, part of the John Day Fossil Beds National Monument of the Northwestern United States. While Haplohippus is quite similar to Orohippus, it is considered more primitive in character than Epihippus.
Text in “About” is quoted from the Wikipedia article Haplohippus (revision 1258217443), 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: Q379303.
