Anacodon fossil map
Where fossils of Anacodon 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 | 60.9–48.07 million years ago (Selandian to Ypresian) |
| Periods | Paleogene |
| Family | Arctocyonidae |
| Named by | Cope 1882 |
| Fossil records | 58 occurrences at 17 locations (PBDB) |
| Found in | United States, Canada |
| Rock formations | Willwood, Fort Union, Wind River, Margaret |
About Anacodon
Anacodon is a genus of arctocyonid from the Eocene of North America. It is known from the type species, A. ursidens, a second species, A. cultridens, and a possible third, A. nexus. Initially believed to be a relative of Phenacodon, it was subsequently found to be an arctocyonid, possibly related to Claenodon. Anacodon was extremely robust compared to other members of its family, and may have been capable of climbing and digging like modern bears.
Text in “About” is quoted from the Wikipedia article Anacodon (revision 1360610345), 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: Q104176763.
