Opal (UM BB-90) (Eocene of the United States)

Where: Lincoln County, Wyoming (41.8° N, 110.7° W: paleocoordinates 45.9° N, 96.9° 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 16345: authorized by John Alroy, entered by John Alroy on 21.09.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Rodentia - Ischyromyidae
Thisbemys corrugatus Wood 1959 rodent
Leptotomus parvus Wood 1959 rodent
 Primates - Omomyidae
Uintanius cf. rutherfurdi Robinson 1966 tarsier
Washakius insignis Leidy 1873 tarsier
 Theriamorpha - Viverravidae
Viverravus minutus Wortman 1901 placental
 Theriamorpha -
Miacis parvivorus Cope 1872 placental
 Cimolesta - Apatemyidae
Apatemys bellulus Marsh 1872 eutherian
 Theriamorpha - Herpetotheriidae
Herpetotherium knighti McGrew et al. 1959 marsupial
Scenopagus curtidens
  -
Scenopagus curtidens Matthew 1909
Scenopagus edenensis
  -
Scenopagus edenensis McGrew et al. 1959