Rosebud Agency Quarry (Miocene to of the United States)

Where: Todd County, South Dakota (43.2° N, 100.7° W: paleocoordinates 43.5° N, 98.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: ? Cap Rock Member (Ash Hollow Formation), Clarendonian to Clarendonian (12.5 - 9.4 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 18352: authorized by John Alroy, entered by John Alroy on 05.08.1992, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• 19 F:AM specimens: Skinner and Johnson 1984
possibly relevant:
Cosoryx furcatus Frick 1937: "15 mi. N.E. of Rosebud Agency"
Mammalia
 Perissodactyla - Rhinocerotidae
Teleoceras major3 Hatcher 1894 rhinoceros
 Perissodactyla - Equidae
Hipparion tehonense2 Merriam 1916 hipparionine horse
confirmed by JA pers. obs.
Pseudhipparion gratum4 Leidy 1869 hipparionine horse
"southeast of the Rosebud Agency Buildings... 140 feet above the contact of the Rosebud-Pliocene undifferentiated"
 Artiodactyla - Palaeomerycidae
Cranioceras unicornis1 Matthew 1918 ruminant
 Artiodactyla - Moschidae
Longirostromeryx wellsi n. sp.4 Matthew 1904 musk deer
of Matthew 1904 "exact discovery site... unknown" but from "near Rosebud Agency"; said by Frick 1937 to be from "Little White River, South Dakota"
 Artiodactyla - Tayassuidae
Macrogenis sp.5 Wright 1993 peccary
new Leptarctus Quarry species
 Carnivora - Canidae
Aelurodon taxoides Hatcher 1894 bone-crushing dog
Epicyon saevus Leidy 1858 bone-crushing dog