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, 80° 53' W
Coordinate 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
there are 14C dates on bone of 17,170 +/- 920, 19,110 +/- 1260, and 23,560 +/- 180 RCYBP
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"
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
Metadata
Sample number: 3352
Contributor: John Alroy
Enterer: John Alroy
Created: 2019-08-25 20:06:18
Modified: 2023-04-03 07:15:05
Abundance distribution
6 species
0 singletons
total count 664
extrapolated richness: 7.5
Fisher's α: 0.910
geometric series k: 0.3228
Hurlbert's PIE: 0.2461
Shannon's H: 0.5038
Good's u: 1.0000
Each square represents a species. Square sizes are proportional to counts.
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Register
| Eremotherium laurillardi | 571 | |
| Notiomastodon platensis | 76 | |
| Glossotherium cf. tropicorum | 8 | |
| Equus neogeus | 3 | |
| "Equus santaeelenae" | ||
| Cervidae indet. | 2 | |
| possibly Odocoileus salinae | ||
| Holmesina occidentalis | 4 | |
Current reference:
Shotwell 1968 (ER 3992)