Rancho La Brea (Pit 91)
Basic information
Sample name: Rancho La Brea (Pit 91)
Reference: L. M. Spencer, B. Van Valkenburgh, and J. M. Harris. 2003. Taphonomic analysis of large mammals recovered from the Pleistocene Rancho La Brea tar seeps. Paleobiology 29(4):561-575 [ER 3121]
Geography
Country: United States
State: California
County: Los Angeles
Coordinate: 34° 3' 46" N, 118° 21' 22" W
Coordinate basis: based on nearby landmark
Time interval: Late Pleistocene
Geography comments: coordinate based on La Brea Tar Pits
Environment
Lithology: tar
Taphonomic context: tar pit
Habitat comments: "asphalt-impregnated layers of sand or clay"
Methods
Life forms: carnivores,ungulates,other large mammals
Sampling methods: quarry
Sample size: 17937 specimens
Years: 1969 - 1980
Metadata
Sample number: 3409
Contributor: John Alroy
Enterer: John Alroy
Created: 2019-08-30 22:06:40
Modified: 2019-08-30 12:06:40
Abundance distribution
19 species
1 singleton
total count 17937
geometric series index: 21.6
Fisher's α: 2.099
geometric series k: 0.6100
Hurlbert's PIE: 0.6852
Shannon's H: 1.4620
Good's u: 0.9999
Each square represents a species. Square sizes are proportional to counts.
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Register
| Antilocapra americana | 10 | 51 kg |
| †Capromeryx minor | 71 | |
| †Bison antiquus | 1002 | |
| †Bison occidentalis | 2 | |
| †Camelops hesternus | 38 | |
| Odocoileus hemionus | 21 | 65 kg browser |
| †Aenocyon dirus | 6666 | |
| "Canis dirus" | ||
| Canis latrans | 1213 | 12 kg carnivore-insectivore |
| Canis lupus | 29 | 43 kg carnivore |
| Puma concolor | 17 | 49 kg carnivore |
| "Felis concolor" | ||
| Lynx rufus | 188 | 9.0 kg carnivore |
| †Panthera atrox | 7312 | |
| †Smilodon fatalis | 86 | |
| †Arctodus simus | 4 | |
| †Nothrotheriops shastensis | 52 | |
| "Nothrotheriops shastense" | ||
| †Paramylodon harlani | 386 | |
| †Equus occidentalis | 835 | |
| †Tapirus californicus | 1 | |
| †Mammut americanum | 4 | |