Leptauchenia fossil map
Where fossils of Leptauchenia have been found, shown on the Earth as it looked about 30 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 30 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 | 33.9–18.5 million years ago (Rupelian to Burdigalian) |
| Periods | Paleogene, Neogene |
| Family | Merycoidodontidae |
| Named by | Leidy 1856 |
| Fossil records | 376 occurrences at 25 locations (PBDB) |
| Found in | United States |
| Rock formations | Brule, txn:42488, Sharps, Gering, Harrison, Deep River |
About Leptauchenia
Leptauchenia is an extinct goat-like genus of terrestrial herbivore belonging to the oreodont family Merycoidodontidae, and the type genus of the tribe Leptaucheniini. The genus was endemic to North America during the Late Oligocene to Early Miocene (33.9—16.3 mya) and lived for approximately 17.6 million years.
Text in “About” is quoted from the Wikipedia article Leptauchenia (revision 1354839186), 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: Q6527897.
