🦕 Prehistoric World Map

Sthenodectes fossil map

Where fossils of Sthenodectes 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 →

Sthenodectes
Image: Henry Fairfield Osborn (1857–1935), Public domain, via Wikimedia Commons
GroupEarly mammals
Lived45.9–39.7 million years ago (Lutetian to Bartonian)
PeriodsPaleogene
FamilyBrontotheriidae
Named byGregory 1912
Fossil records4 occurrences at 1 locations (PBDB)
Found inUnited States
Rock formationsUinta

About Sthenodectes

Sthenodectes is a genus of brontothere endemic to North America.

Text in “About” is quoted from the Wikipedia article Sthenodectes (revision 1364410678), 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: Q7616100.

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