Chacomylus fossil map
Where fossils of Chacomylus have been found, shown on the Earth as it looked about 66 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 66 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 | 66–63.4 million years ago (Danian) |
| Periods | Paleogene |
| Family | Hyopsodontidae |
| Named by | Williamson and Weil 2011 |
| Fossil records | 2 occurrences at 1 locations (PBDB) |
| Found in | United States |
| Rock formations | txn:42243 |
About Chacomylus
Chacomylus is an extinct genus of odd-toed ungulate condylarth which existed in the Nacimiento Formation, United States during the early Paleocene period (Puercan age). It was first named by Thomas E. Williamson and Anne Weil in 2011 and the type species is Chacomylus sladei.
Text in “About” is quoted from the Wikipedia article Chacomylus (revision 1341187055), 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: Q5066114.
