🦕 Prehistoric World Map

Desmatochoerus fossil map

Where fossils of Desmatochoerus 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
Lived29.5–18.5 million years ago (Rupelian to Burdigalian)
PeriodsPaleogene, Neogene
FamilyMerycoidodontidae
Named by(Thorpe 1921)
Fossil records58 occurrences at 13 locations (PBDB)
Found inUnited States
Rock formationstxn:42488, Harrison, Gering, Sharps, Brule, Sespe

About Desmatochoerus

Desmatochoerus is a large extinct genus of oreodont of the family Merycoidodontidae, endemic to North America. They lived during the Late Oligocene to Middle Miocene 28.4—16.0 mya, existing for approximately 12 million years. Fossils have been uncovered in several locations in the western U.S.

Text in “About” is quoted from the Wikipedia article Desmatochoerus (revision 1345022591), 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: Q5264599.

More early mammals