Black Ranch ( of the United States)

Also known as Tehama

Where: Tehama County, California (40.0° N, 122.2° W: paleocoordinates 40.0° N, 121.2° W)

• coordinate based on political unit

When: Blancan (4.9 - 1.8 Ma)

Environment/lithology: terrestrial

Primary reference: R. D. Russell and V. L. VanderHoof. 1931. A Vertebrate Fauna From a New Pliocene Formation in Northern California. University of California Publications, Bulletin of the Department of Geological Sciences 20(2):11-21 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 19668: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• includes at least three localities from two levels separated stratigraphically by 200 ft
Nomlaki Tuff at base of fm. dated at 3.3 (= 3.39) Ma by Evernden et al. 1964
NISP about 62
Reptilia
 Testudines - Pantestudinidae
Testudo sp.5 Linnaeus 1758 turtle
Mammalia
 Perissodactyla - Equidae
"Equus simplicidens" = Plesippus simplicidens1
"Equus simplicidens" = Plesippus simplicidens1 Cope 1892 horse
 Carnivora - Canidae
Canis lepophagus3 Johnston 1938 canine
Borophagus cf. diversidens1 Cope 1892 bone-crushing dog
 Xenarthra - Megalonychidae
Megalonychidae indet. Gervais 1855 edentate
 Proboscidea - Gomphotheriidae
Stegomastodon cf. mirificus1 Leidy 1858 gomphothere
 Ungulata - Tayassuidae
Tayassuidae indet. Palmer 1897 peccary
"Prothenops or Platygonus"
 Ungulata - Camelidae
Camelidae indet. Gray 1821 camel
"Camelops? or Pliauchenia? sp."
 Ungulata - Cervidae
Odocoileus sp.4 Rafinesque 1832 New World deer
"Odocoileus? sp. or Cervus? sp."; NISP about 4 DUPLICATE REF 3493 or 3494
Bretzia sp.2 Fry and Gustafson 1974 deer
"Tehama"; apparently new LACM and UW specimens
 Ungulata - Antilocapridae
Antilocapridae indet. Gray 1866 pronghorn
"?Antilocapra sp." of VanderHoof 1933