El Breal de Orocual (ORS20)
Basic information
Sample name: El Breal de Orocual (ORS20)
Reference: A. Solórzano, A. D. Rincón, and H. G. McDonald. 2015. A new mammal assemblage from the Late Pleistocene El Breal de Orocual, northeast of Venezuela. Natural History Museum of Los Angeles County Science Series 42:125-150 [ER 3781]
Geography
Country: Venezuela
State: Monagas
Coordinate: 9.85° N, -63.39° W
Coordinate basis: estimated from map
Time interval: Late Pleistocene
Geography comments: "20 km northeast of the city of Maturín" (apparently near Chaguaramal)
there are no geochronological dates, so the age assignment is based on the mammals
there are no geochronological dates, so the age assignment is based on the mammals
Environment
Lithology: tar
Taphonomic context: tar pit
Habitat comments: "highly asphalt impregnated sedimentary material"
Methods
Life forms: carnivores,rodents,ungulates,other large mammals,other small mammals
Sample size: 230 specimens
Years: 2011
Sampling comments: there is "a diverse fauna composed of mammals, birds, amphibians, turtles, crocodiles, and coleopterans. Wood and seeds are also present" but only mammals are described
Metadata
Sample number: 4096
Contributor: John Alroy
Enterer: John Alroy
Created: 2023-02-23 16:04:59
Modified: 2023-02-23 05:04:59
Abundance distribution
21 species
12 singletons
total count 230
geometric series index: 62.3
Fisher's α: 5.622
geometric series k: 0.7843
Hurlbert's PIE: 0.6408
Shannon's H: 1.5698
Good's u: 0.9479
Each square represents a species. Square sizes are proportional to counts.
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