Big Island-Blue Rim Badlands (UM BI-32) (Eocene of the United States)

Where: Sweetwater County, Wyoming (41.7° N, 109.0° W: paleocoordinates 45.6° N, 95.1° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Bridger Formation, Bridgerian (50.3 - 46.2 Ma)

Environment/lithology: terrestrial

Primary reference: G. F. Gunnell. 1998. Mammalian Fauna From the Lower Bridger Formation (Bridger A, Early Middle Eocene) of the Southern Green River Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 30(3):83-130 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 16109: authorized by John Alroy, entered by John Alroy on 21.09.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Theriamorpha - Peradectidae
cf. Armintodelphys sp. Krishtalka and Stucky 1983 marsupial
 Theriamorpha - Herpetotheriidae
Herpetotherium knighti McGrew et al. 1959 marsupial
 Condylarthra - Hyopsodontidae
Hyopsodus minusculus Leidy 1873 condylarth
 Perissodactyla - Hyrachyidae
Hyrachyus sp. Leidy 1871 odd-toed ungulate
 Perissodactyla -
Helaletes nanus Marsh 1871 odd-toed ungulate
 Artiodactyla - Homacodontidae
Antiacodon cf. pygmaeus Cope 1872 even-toed ungulate
Microsus cuspidatus Leidy 1870 even-toed ungulate
 Theriamorpha - Nyctitheriidae
"Scenopagus curtidens" = Nyctitherium curtidens
"Scenopagus curtidens" = Nyctitherium curtidens Matthew 1909 placental
 Rodentia - Ischyromyidae
Leptotomus parvus Wood 1959 rodent
Thisbemys corrugatus Wood 1959 rodent
 Rodentia - Sciuravidae
Sciuravus nitidus Marsh 1871 rodent
 Primates - Microsyopidae
Microsyops cf. elegans Marsh 1871 primate
 Primates - Notharctidae
Smilodectes mcgrewi Gingerich 1979 primate
 Primates - Omomyidae
cf. Gazinius amplus Bown 1979 tarsier
Omomys carteri Leidy 1869 tarsier
Washakius insignis Leidy 1873 tarsier
Anaptomorphus westi Szalay 1976 tarsier
 Cimolesta - Apatemyidae
Apatemys bellulus Marsh 1872 eutherian