Ticholeptus fossil map
Where fossils of Ticholeptus have been found, shown on the Earth as it looked about 15 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 15 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 | 23.1–5.333 million years ago (Chattian to Messinian) |
| Periods | Paleogene, Neogene |
| Family | Merycoidodontidae |
| Named by | Cope 1878 |
| Fossil records | 106 occurrences at 31 locations (PBDB) |
| Found in | United States, Canada |
| Rock formations | txn:42488, Olcott, Wood Mountain, Mascall, Runningwater, Valentine |
About Ticholeptus
Ticholeptus is an extinct genus of oreodont endemic to North America during the Middle Miocene subepoch (16.0—13.6 mya), existing for approximately 2.4 million years. Fossils have been uncovered throughout the United States from Florida to Oregon, as well as California, and numerous sites in Nebraska, Nevada, and Montana.
Text in “About” is quoted from the Wikipedia article Ticholeptus (revision 1345022698), 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: Q7800602.
