Douglass Creek Locality 3 (Eocene of the United States)

Where: Powell County, Montana (46.4° N, 112.8° W: paleocoordinates 48.3° N, 103.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Chadronian (37.2 - 33.9 Ma)

Environment/lithology: terrestrial

Primary reference: R. L. Konizeski. 1961. Paleoecology of an Early Oligocene Biota from Douglass Creek Basin, Montana. Geological Society America Bulletin 72 [J. Alroy/J. Alroy/J. Ju]more details

PaleoDB collection 16946: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• NISP 14
Show authors, comments, and common names
Mammalia
 Perissodactyla - Rhinocerotidae
Subhyracodon cf. mitis1
Subhyracodon cf. mitis1 Cope 1875 rhinoceros
 Perissodactyla - Equidae
Equidae indet.1
Equidae indet.1 Gray 1821 horse
 Artiodactyla - Agriochoeridae
Agriochoerus sp.
Agriochoerus sp. Leidy 1850 agriochoerid
 Artiodactyla - Leptomerycidae
Leptomeryx cf. evansi
Leptomeryx cf. evansi Leidy 1853 ruminant
including additional "Leptomeryx? sp.?"
 Carnivora - Ursidae
Parictis montanus2
Parictis montanus2 Clark and Guensburg 1972 bear
one of two "Hesperocyon paterculus" specimens, the other being from Locality 1
 Theriamorpha - Apternodontidae
Apternodus mediaevus
Apternodus mediaevus Matthew 1903 placental
 Rodentia - Ischyromyidae
? Ischyromys sp.1
? Ischyromys sp.1 Leidy 1856 rodent
 Rodentia - Eomyidae
"Paradjidaumo trilophus" = Adjidaumo trilophus1
"Paradjidaumo trilophus" = Adjidaumo trilophus1 Cope 1873 rodent
 Rodentia - Aplodontidae
Aplodontidae indet.
Aplodontidae indet. Brandt 1855 mountain beaver
1Alroy 2002; 2Clark and Guensburg 1972