San Simon Power Line ( of the United States)

Where: Graham County, Arizona (32.6° N, 109.5° W: paleocoordinates 32.7° N, 108.9° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Gila Conglomerate Formation, Blancan to Blancan (4.9 - 0.3 Ma)

• material is from "a number of localities" in a section than spans about 15 m and six beds

• member-level stratigraphic resolution

Environment/lithology: fluvial; siltstone and sandstone

Size classes: macrofossils, mesofossils

Collection methods: bulk, surface (float), sieve,

Primary reference: Y. Tomida. 1987. Small mammal fossils and correlation of continental deposits, Safford and Duncan basins, Arizona. National Science Museum 1-141 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 19652: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• possibly relevant: Neochoerus dichroplax Mones 1991: "Graham County, San Simon Creek (E of 111 Ranch), Dry Mountain"; also "San Simon Creek, Whitlock Mts."
Mammalia
 Rodentia - Sciuridae
"Spermophilus cf. bensoni" = Citellus (Otospermophilus) bensoni
"Spermophilus cf. bensoni" = Citellus (Otospermophilus) bensoni Gidley 1922 squirrel
 Rodentia - Geomyidae
Nerterogeomys cf. persimilis Hay 1927 pocket gopher
Cratogeomys sansimonensis1 Tomida 1987 pocket gopher
 Rodentia - Heteromyidae
Dipodomys hibbardi Zakrzewski 1981 kangaroo rat
 Rodentia - Cricetidae
Sigmodon sp. Say and Ord 1825 cotton rat
 Lagomorpha - Leporidae
Hypolagus arizonensis2 Downey 1962 rabbit
Alilepus wilsoni2 White 1991 rabbit
Sylvilagus cf. cunicularis2 cottontail rabbit
 Perissodactyla - Equidae
Equus sp. Linnaeus 1758 horse
 Artiodactyla - Camelidae
? Camelops sp. Leidy 1854 camel
Hemiauchenia sp. Gervais and Ameghino 1880 camel
 Artiodactyla - Antilocapridae
Antilocapridae indet. Gray 1866 pronghorn
 Carnivora - Mustelidae
Taxidea sp. Waterhouse 1839 badger
 Carnivora - Ursidae
Arctodus sp. Leidy 1854 bear
 Carnivora - Canidae
Canidae indet. Fischer de Waldheim 1817 canid
 Cingulata - Glyptodontidae
Glyptotherium texanum Osborn 1903 glyptodon