🦕 Prehistoric World Map

Metarhinus fossil map

Where fossils of Metarhinus 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 →

Metarhinus
Image: Nikhil Iyengar, CC BY-SA 4.0, via Wikimedia Commons
GroupEarly mammals
Lived45.9–39.7 million years ago (Lutetian to Bartonian)
PeriodsPaleogene
FamilyBrontotheriidae
Named byOsborn 1908
Fossil records52 occurrences at 5 locations (PBDB)
Found inUnited States
Rock formationsFriars, Uinta, Washakie, Santiago

About Metarhinus

Metarhinus is a genus of brontothere endemic to North America. It lived during the Eocene, in the early and middle Uintan land mammal age.

Text in “About” is quoted from the Wikipedia article Metarhinus (revision 1368951669), 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: Q6823183.

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