Bear Creek Quarry (Miocene of the United States)

Where: Cherry County, Nebraska (42.8° N, 100.8° W: paleocoordinates 43.3° N, 98.2° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Merritt Dam Member (Ash Hollow Formation), Clarendonian (13.6 - 10.3 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 18042: authorized by John Alroy, entered by John Alroy on 05.08.1992, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• "at least 258" F:AM specimens: Skinner and Johnson 1984
equids: Hulbert 1989 pers. commun.
"Ustatochoerus major" Schultz and Falkenbach 1941: "Spring Canyon at mouth of Bear Creek" in Cherry Co.
Mammalia
 Perissodactyla - Rhinocerotidae
Teleoceras major3 Hatcher 1894 rhinoceros
 Perissodactyla - Equidae
Hipparion cf. tehonense1 Merriam 1916 hipparionine horse
JA pers. obs. 1/93
Pseudhipparion gratum2 Leidy 1869 hipparionine horse
pers. commun.
Calippus placidus2 Leidy 1869 horse
pers. commun.
Calippus martini2 Hesse 1936 horse
pers. commun.
Protohippus supremus2 Leidy 1869 horse
pers. commun.
Pliohippus pernix2 Marsh 1874 horse
pers. commun.
 Artiodactyla - Tayassuidae
Macrogenis sp.6 Wright 1993 peccary
new Leptarctus Quarry species
 Artiodactyla - Camelidae
Procamelus occidentalis4 Leidy 1858 camel
"above the Cap Rock... along Bear Creek, Cherry County"
 Artiodactyla - Moschidae
Longirostromeryx wellsi1 Matthew 1904 musk deer
 Artiodactyla - Palaeomerycidae
Cranioceras unicornis1 Matthew 1918 ruminant
 Artiodactyla - Merycoidodontidae
"Merychyus novomexicanus" = Ustatochoerus medius novomexicanus1
"Merychyus novomexicanus" = Ustatochoerus medius novomexicanus1 Frick 1929 oreodont
 Carnivora - Canidae
Leptocyon matthewi n. sp.5 Tedford et al. 2009 canine
Cynarctus crucidens Barbour and Cook 1914 bone-crushing dog
Paratomarctus euthos McGrew 1935 bone-crushing dog
Epicyon saevus Leidy 1858 bone-crushing dog
also "Bear Creek Quarry slide"
Aelurodon taxoides Hatcher 1894 bone-crushing dog