Leader Quarry (Miocene of the United States)

Where: San Bernardino County, California (34.8° N, 117.0° W: paleocoordinates 34.1° N, 112.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Upper Member (Barstow Formation), Barstovian (16.3 - 12.5 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 19422: authorized by John Alroy, entered by John Alroy on 19.05.2000, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• said to be in the Barstow fauna sensu Woodburne et al. 1990 by Wang et al. 1999
Mammalia
 Carnivora - Amphicyonidae
Ischyrocyon sp.3 Matthew and Gidley 1904 bear-dog
 Carnivora - Canidae
Aelurodon asthenostylus Wang et al. 1999 bone-crushing dog
Paratomarctus temerarius Leidy 1858 bone-crushing dog
Microtomarctus conferta Matthew 1918 bone-crushing dog
 Perissodactyla - Equidae
Anchitheriinae indet.2 Leidy 1869 anchitheriine horse
"Hypohippus or Megahippus undifferentiated"
Scaphohippus intermontanus4 Merriam 1915 horse
 Perissodactyla - Rhinocerotidae
Aphelops megalodus5 Cope 1873 rhinoceros
 Artiodactyla - Antilocapridae
Merycodus joraki1 Frick 1937 pronghorn