Miacis fossil map
Where fossils of Miacis 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 | 56–27.3 million years ago (Ypresian to Rupelian) |
| Periods | Paleogene |
| Named by | Cope 1872 |
| Fossil records | 308 occurrences at 79 locations (PBDB) |
| Found in | United States, China, United Kingdom, Canada, Kazakhstan, France, Portugal, Spain, Thailand |
| Rock formations | Willwood, Wind River, Wasatch, DeBeque, Bridger, Washakie |
About Miacis
Miacis ("small point") is an extinct genus of placental mammals from clade Carnivoraformes, that lived in North America from the early to middle Eocene.
Text in “About” is quoted from the Wikipedia article Miacis (revision 1332562095), 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: Q133030.