Big Island-Blue Rim Badlands (UM BI-17) (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 16098: authorized by John Alroy, entered by John Alroy on 21.09.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Primates - Microsyopidae
Microsyops cf. elegans Marsh 1871 primate
 Primates - Omomyidae
Trogolemur cf. amplior Beard et al. 1992 tarsier
Omomys carteri Leidy 1869 tarsier
Washakius insignis Leidy 1873 tarsier
 Primates - Notharctidae
Notharctus robinsoni Gingerich 1979 primate
 Glires -
 Rodentia - Sciuravidae
Sciuravus nitidus Marsh 1871 rodent
 Rodentia - Ischyromyidae
Microparamys cf. minutus Wilson 1937 rodent
Thisbemys corrugatus Wood 1959 rodent
 Lipotyphla - Geolabididae
Centetodon bembicophagus Lillegraven et al. 1981 placental
 Perissodactyla - Hyrachyidae
Hyrachyus sp. Leidy 1871 odd-toed ungulate
 Tribosphenida - Nyctitheriidae
Nyctitherium serotinum Marsh 1872 placental
 Ferae - Metacheiromyidae
Metacheiromys sp. Wortman 1903 placental
 Macroscelidea - Amphilemuridae
Scenopagus curtidens Matthew 1909 elephant shrew
 Ungulata - Hyopsodontidae
Hyopsodus minusculus Leidy 1873 condylarth
 Ungulata - Homacodontidae
Antiacodon cf. pygmaeus Cope 1872 even-toed ungulate
 Theriiformes - Peradectidae
Peradectes chesteri Gazin 1952 metatherian
 Theriiformes - Herpetotheriidae
"Copedelphys innominata" = Herpetotherium innominatum Simpson 1928 marsupial
Herpetotherium knighti McGrew et al. 1959 marsupial