Twenty Mile District ( of the United States)

Where: Goshen County, Wyoming (42.0° N, 104.2° W: paleocoordinates 42.9° N, 99.2° W)

• coordinate based on political unit

When: Harrisonian (24.8 - 18.5 Ma)

Environment/lithology: terrestrial

Primary reference: X. Wang, R. H. Tedford, and B. E. Taylor. 1999. Phylogenetic systematics of the Borophaginae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 243:1-392 [J. Alroy/J. Alroy/J. Alroy]more details

PaleoDB collection 17848: authorized by John Alroy, entered by John Alroy on 19.05.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Carnivora - Canidae
Desmocyon thomsoni Matthew 1907 bone-crushing dog
"20 mi southeast of Lusk, high Middle Brown Sand"; also "21 mi southeast of Lusk"
 Artiodactyla - Moschidae
"Pseudoblastomeryx falkenbachi" = Pseudoblastomeryx advena1
"Pseudoblastomeryx falkenbachi" = Pseudoblastomeryx advena1 Matthew 1907 musk deer
 Artiodactyla - Camelidae
Stenomylus gracilis2 Peterson 1907 camel
"middle of beds"