🦕 Prehistoric World Map

Oreonetes fossil map

Where fossils of Oreonetes 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 →

GroupEarly mammals
Lived37–33.9 million years ago (Priabonian)
PeriodsPaleogene
FamilyMerycoidodontidae
Named byLoomis 1924
Fossil records8 occurrences at 4 locations (PBDB)
Found inUnited States
Rock formationstxn:42488, Chadron

About Oreonetes

Oreonetes is an extinct genus of oreodont endemic to North America from the Late Eocene 38.0—33.9 Ma living approximately 4.1 million years.

Oreonetes was a very small browsing oreodont found in the forest undergrowth in the Western United States during the Late Eocene.

Text in “About” is quoted from the Wikipedia article Oreonetes (revision 1380966786), 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: Q7101606.

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