Tanque Loma
Basic information
Sample name: Tanque Loma

Reference: E. L. Lindsey and E. X. Lopez. 2015. Tanque Loma, a new late-Pleistocene megafaunal tar seep locality from southwest Ecuador. Journal of South American Earth Sciences 57:61-82 [ER 3079]
Geography
Country: Ecuador

Coordinate: 2° 13' S, 81° 53' W
Latlng basis: stated in text

Time interval: Late Pleistocene

Max Ma: 0.01911

Min Ma: 0.01717

Age basis: radiocarbon (uncalibrated)

Geography comments: "between the municipalities of La Libertad and Santa Elena"
there are 14C dates on bone of 17, 170 +/- 920, 19, 110 +/- 1260, and 23, 560 +/- 180 RCYBP

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Environment
Substrate: ground surface

Lithology: tar

Taphonomic context: paleosol, tar pit

Habitat comments: "Strata IV - VII comprise the Pleistocene (Lujanian) deposits" and most fossils are from Stratum IV and V
Stratum IV is "a compact, silt-sand paleosol"
Stratum V sediments are "similar to the lowermost portion of Stratum IV, but these sediments are saturated with asphalt. In this layer megafaunal bones are so abundant as to constitute a clast-supported breccia of bones, cobbles and plant material"

Methods
Life forms: ungulates, other large mammals

Sampling methods: quarry

Sample size: 664 specimens

Years: 2003 - 2006

Net or trap nights: 0

Basal area status: not applicable

Metadata
Sample no: 3352

Contributor no: John Alroy

Enterer: John Alroy

Created: 2019-08-25 20:06:18

Modified: 2023-04-03 07:15:05

Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
6 species
0 singleton
total count 664
geometric series index: 7.5
Fisher's α: 0.91
geometric series k: 0.35
Hurlbert's PIE: 0.2461
Shannon's H: 0.5038
Good's u: 1
Register
†Eremotherium laurillardi (ground sloth)571
†Notiomastodon platensis (gomphothere)76
†Glossotherium cf. tropicorum (ground sloth)8
†Equus neogeus (horse)3
"Equus santaeelenae"
Cervidae indet.2
possibly Odocoileus salinae
†Holmesina occidentalis (pampathere)4