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"Something Strange Going On": 55 Million-Year-Old Primate Fossils Found In SW Wyoming
Cowboy State Daily • • science
Key Points:
- New fossils of three prehistoric primates, including a new species of Tetonius, were discovered at Smiley Draw in southwestern Wyoming, providing fresh insights into early primate evolution during the Eocene Period.
- These fossils, found in an unusual sandstone layer, show that several primate species coexisted in the same area, challenging previous assumptions based on findings from the well-studied Bighorn Basin.
- The study highlights evidence of gradual and parallel evolution in early primates, with changes in jaw and dental anatomy possibly linked to dietary adaptations such as sap feeding.
- Climate fluctuations during the Eocene, including rapid warming and cooling events, may have caused dynamic shifts in primate populations and distributions across Wyoming.
- Wyoming remains a crucial site for understanding primate origins, with ongoing fossil discoveries promising to deepen knowledge about humanity’s distant evolutionary relatives.
