Hyopsodus fossil map
Where fossils of Hyopsodus have been found, shown on the Earth as it looked about 56 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 56 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 | 57.5–37 million years ago (Thanetian to Priabonian) |
| Periods | Paleogene |
| Family | Hyopsodontidae |
| Named by | Leidy 1870 |
| Fossil records | 2,030 occurrences at 236 locations (PBDB) |
| Found in | United States, United Kingdom, Mongolia, France, China, Japan, Mexico, Canada |
| Rock formations | Willwood, Wind River, Wasatch, Bridger, DeBeque, txn:42243 |
About Hyopsodus
Hyopsodus is a genus of extinct early ungulate mammal of the family Hyopsodontidae, a group associated with or basal to the Perissodactyla. It was a small mammal with skull of about 6 cm in length. Fossils of this genus have been found in the Eocene of North America, especially the Bighorn Basin region of the United States. It has also been found in Eurasia.
Text in “About” is quoted from the Wikipedia article Hyopsodus (revision 1373043466), 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: Q2981837.
