Included Localities: Several collection areas about 30 km southeast of Safford, including the San Simon Power Line, the Central and Southern Whitlock Mountain and the Whitlock Oil Well, the Artesia Fauna, and the Tanque Road Fauna (Morgan and White 2005).
Age. Late Blancan, estimated at between 2.2 and 2.4 mya (Morgan and White 2005).
General Description. Sediments of the Gila Group in the San Simon Valley (Morgan and White 2005).
Fauna.
†Glyptotherium sp.—Glyptodonts (Morgan and White 2005)
†Otospermophilus bensoni—Benson Ground Squirrel (Morgan and White 2005: ?)
Spermophilus bensoni
Castor sp.—American Beavers (Morgan and White 2005)
†Dipodomys hibbardi—Hibbard's Kangaroo Rat (Morgan and White 2005)
†Cratogeomys sansimonensis—San Simon Pocket Gopher (Morgan and White 2005)
†Geomys persimilis—Hay's Pocket Gopher (Morgan and White 2005: ?)
Sigmodon sp.—Cotton Rats (Morgan and White 2005)
†Alilepus wilsoni—Wilson's Rabbit (Morgan and White 2005)
†Aluralagus virginiae—Virginia Rabbit (Morgan and White 2005)
Lepus townsendii—White-tailed Jackrabbit (Morgan and White 2005)
Sylvilagus cunicularius—Mexican Cottontail (Morgan and White 2005)
†Sylvilagus hibbardi—Hibbard's Cottontail (Morgan and White 2005)
†Xenosmilus sp.—Strange Sabertooths (Morgan and White 2005)
†Borophagus diversidens—Bone-eating Dog (Morgan and White 2005)
†Canis edwardii—Edward's Wolf (Morgan and White 2005)
†Arctodus sp.—Short-faced Bears (Morgan and White 2005)
†Tremarctos sp.—Spectacled Bears (Morgan and White 2005)
Taxidea sp.—American Badgers (Morgan and White 2005)
Procyon sp.—Raccoons (Morgan and White 2005)
†Equus sp.—Horses (Morgan and White 2005)
†Tapirus sp.—Tapirs (Morgan and White 2005)
†Platygonus sp.—Flat-headed Peccaries (Morgan and White 2005)
†Camelops sp.—American Camels (Morgan and White 2005)
†Gigantocamelus sp.—Giant Camel (Morgan and White 2005)
†Hemiauchenia blancoensis—Blanco Llama (Morgan and White 2005)
†Hemiauchenia undescribed species—Llamas (Morgan and White 2005)
†Megatylopus cochrani—Big Camels (Morgan and White 2005: ?)
†Bretzia—False Elks (Morgan and White 2005: cf.)
Odocoileus sp.—Odocoiline Deer (Morgan and White 2005)
†Capromeryx arizonensis—Skinner's Pronghorn (Morgan and White 2005)
Literature. Morgan and White 2005.
Last Update: 20 Jan 2013