Cal Tech ( of the United States)

Where: Cochise County, Arizona (32.0° N, 110.2° W: paleocoordinates 32.1° N, 109.6° W)

• coordinate based on political unit

When: St. David Formation, Blancan (4.9 - 1.8 Ma)

Environment/lithology: terrestrial

Primary reference: N. M. Johnson, N. D. Opdyke, and E. H. Lindsay. 1975. Magnetic Polarity Stratigraphy of Pliocene-Pleistocene Terrestrial Deposits and Vertebrate Faunas, San Pedro Valley, Arizona. Geological Society America Bulletin 86(1):5-12 [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 19645: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• within chron C2r.2r ("error" 7.7%)
Show authors, comments, and common names
Mammalia
 Chiroptera - Vespertilionidae
Histiotus stocki
Histiotus stocki Stirton 1931 vesper bat
 Proboscidea - Gomphotheriidae
cf. Stegomastodon sp.
cf. Stegomastodon sp. Pohlig 1912 gomphothere
 Rodentia - Caviidae
Neochoerus sp.
Neochoerus sp. Hay 1926 caviomorph
 Perissodactyla - Equidae
Equus sp.
Equus sp. Linnaeus 1758 horse
 Artiodactyla - Cervidae
Odocoileus sp.
Odocoileus sp. Rafinesque 1832 New World deer
 Artiodactyla - Tayassuidae
Platygonus sp.
Platygonus sp. Leconte 1848 peccary