Oregon Buttes (Eocene to of the United States)

Where: Fremont County, Wyoming (43.2° N, 108.2° W: paleocoordinates 47.6° N, 92.4° W)

• coordinate based on political unit

When: Wasatch Formation, Wasatchian to Wasatchian (55.8 - 46.2 Ma)

Environment/lithology: terrestrial

Primary reference: C. L. Gazin. 1965. Early Eocene mammalian faunas and their environment in the vicinity of the Rock Springs Uplift, Wyoming. Wyoming Geological Association Guidebook 19:171-180 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 15713: authorized by John Alroy, entered by John Alroy on 26.03.1995

Creative Commons license: CC BY (attribution)

Taxonomic list

• "red beds... undifferentiated"; position within the Wasatch unclear, could be in either the Main Body or the Cathedral Bluffs Tongue
could be Bridgerian
Mammalia
 Perissodactyla -
Tapiroidea indet. Gill 1872 odd-toed ungulate
"Heptodon or Helaletes"
 Primates - Notharctidae
Notharctus sp. Leidy 1870 primate