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
Pseudhipparion gratum2 Leidy 1869 hipparionine horse
pers. commun.
Hipparion cf. tehonense1 Merriam 1916 hipparionine horse
JA pers. obs. 1/93
Pliohippus pernix2 Marsh 1874 horse
pers. commun.
Protohippus supremus2 Leidy 1869 horse
pers. commun.
Calippus martini2 Hesse 1936 horse
pers. commun.
Calippus placidus2 Leidy 1869 horse
pers. commun.
 Carnivora - Canidae
Leptocyon matthewi n. sp.5 Tedford et al. 2009 canine
Cynarctus crucidens Barbour and Cook 1914 bone-crushing dog
Aelurodon taxoides Hatcher 1894 bone-crushing dog
Epicyon saevus Leidy 1858 bone-crushing dog
also "Bear Creek Quarry slide"
Paratomarctus euthos McGrew 1935 bone-crushing dog
 Ungulata - Merycoidodontidae
"Merychyus novomexicanus" = Ustatochoerus medius novomexicanus1
"Merychyus novomexicanus" = Ustatochoerus medius novomexicanus1 Frick 1929 oreodont
 Ungulata - Tayassuidae
Macrogenis sp.6 Wright 1993 peccary
new Leptarctus Quarry species
 Ungulata - Camelidae
Procamelus occidentalis4 Leidy 1858 camel
"above the Cap Rock... along Bear Creek, Cherry County"
 Ungulata - Palaeomerycidae
Cranioceras unicornis1 Matthew 1918 ruminant
 Ungulata - Moschidae
Longirostromeryx wellsi1 Matthew 1904 musk deer