CIT 315/324 (Miocene of the United States)

Where: San Luis Obispo County, California (35.1° N, 120.0° W: paleocoordinates 34.4° N, 115.6° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Miocene (23.0 - 5.3 Ma)

Environment/lithology: terrestrial

Primary reference: J. F. Dougherty. 1940. A new Miocene mammalian fauna from Caliente Mountain, California. Carnegie Institution of Washington Publication 514(8):109-143 [J. Alroy/J. Alroy/J. Alroy]more details

PaleoDB collection 19294: authorized by John Alroy, entered by John Alroy on 27.09.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• said to be 50 feet below the Lower Triple Basalt, but actually only 9 m below it: Kelly and Lander 1988; basalt dated at 16.5 +/- 1.3 Ma (KA)
two localities at approximately the same level
I assume this is the type locality of "M." carrizoensis; see Tedford et al. 1987 p. 158L, Repenning and Vedder 1961 p. 238, and Dougherty 1940b p. 123
Repenning and Vedder 1961 list the following "Hemingfordian" taxa that are of unknown provenance: Amphicyon cf. frendens Hesperhys vagrans "? Prosthennops sp."
Mammalia
 Perissodactyla - Equidae
Equidae indet.2 Gray 1821 horse
Archaeohippus ultimus2 Cope 1886 anchitheriine horse
Equinae indet.2 Steinmann and Döderlein 1890 horse
Parapliohippus carrizoensis1 Dougherty 1940 horse
 Artiodactyla -
 Artiodactyla - Palaeomerycidae
Dromomerycinae indet.1 Frick 1937 ruminant