Protoreodon fossil map
Where fossils of Protoreodon have been found, shown on the Earth as it looked about 45 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 45 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 | 45.9–33.9 million years ago (Lutetian to Priabonian) |
| Periods | Paleogene |
| Family | Agriochoeridae |
| Named by | Scott and Osborn 1887 |
| Fossil records | 240 occurrences at 37 locations (PBDB) |
| Found in | United States, Canada, Mexico |
| Rock formations | Uinta, Sespe, Santiago, Devil's Graveyard, Colmena Tuff, Wiggins |
About Protoreodon
Protoreodon ("first Oreodon") was a genus of agriochoerid merycoidodontoid from California, Texas, Utah and Wyoming.
Text in “About” is quoted from the Wikipedia article Protoreodon (revision 1345022692), 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: Q59780136.
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