🦕 Prehistoric World Map

Eporeodon fossil map

Where fossils of Eporeodon 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 →

Eporeodon
Image: Ted Fremd, Public domain, via Wikimedia Commons
GroupEarly mammals
Lived39.7–15.98 million years ago (Bartonian to Burdigalian)
PeriodsPaleogene, Neogene
FamilyMerycoidodontidae
Named byMarsh 1875
Fossil records42 occurrences at 17 locations (PBDB)
Found inUnited States
Rock formationsJohn Day, txn:42488, Sespe

About Eporeodon

Eporeodon is an extinct genus of oreodont belonging to the family Merycoidontidae. It lived from the Oligocene epoch 30.8—24.8 mya) existing for approximately 6 million years.

Text in “About” is quoted from the Wikipedia article Eporeodon (revision 1345022597), 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: Q5383814.

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