🦕 Prehistoric World Map

Stylinodon fossil map

Where fossils of Stylinodon 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 →

Stylinodon
Image: ДиБгд, CC BY 4.0, via Wikimedia Commons
GroupEarly mammals
Lived56–39.7 million years ago (Ypresian to Bartonian)
PeriodsPaleogene
FamilyStylinodontidae
Named byMarsh 1874
Fossil records44 occurrences at 8 locations (PBDB)
Found inUnited States
Rock formationsBridger, Wasatch, Huerfano, Devil's Graveyard, Washakie, Wind River

About Stylinodon

Stylinodon ("tooth with pilar-like fibers") is an extinct genus of taeniodonts that lived in North America from early to middle Eocene.

Text in “About” is quoted from the Wikipedia article Stylinodon (revision 1354990113), 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: Q2281297.

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