Las Guancas (Capa 10)
Basic information
Sample name: Las Guancas (Capa 10)
Sample aka: RI-16
Reference: R. Labarca, F. Fuentes, and F. Mena. 2008. Los conjuntos faunÃsticos pleistocénicos de cueva Las Guanacas (Región de Aisen, Patagonia chilena): alcances taxonómicos y tafonómicos. Magallania 36(2):123-142 [ER 3386]
Geography
Country: Chile
Coordinate: 46° 15' S, 71° 59' W
Coordinate basis: stated in text
Time interval: Late Pleistocene
Section: 3386
Unit number: 2
Unit order: above to below
Ma: 0.013275
Age basis: radiocarbon (uncalibrated)
Geography comments: "noreste del cerro Nudo, sobre el salto del Ibâñez... una cueva de 18 mts de profundidad y 6 mts de ancho promedio"
there is an uncalibrated AMS date of 13275 +/0- 30 ybp on a horse molar from layer 10, so this is a minimum for 11 and 12 and a maximum for 9
there is an uncalibrated AMS date of 13275 +/0- 30 ybp on a horse molar from layer 10, so this is a minimum for 11 and 12 and a maximum for 9
Environment
Lithology: ash
Taphonomic context: carnivore accumulation,cave
Habitat comments: the layers are numbered from the top down
layers 8, 10, and 12 consist of collapse layers that are apparently composed of volanic ash; layer 9 is a 10 cm-thick sand and layer 11 is a 20-cm thick silt
layers 8, 10, and 12 consist of collapse layers that are apparently composed of volanic ash; layer 9 is a 10 cm-thick sand and layer 11 is a 20-cm thick silt
Methods
Life forms: carnivores,ungulates
Sampling methods: quarry
Sample size: 28 specimens
Years: 1982, 1983, 1997
Sampling comments: there are 611 Mylodon darwini osteoderms from all levels combined; these are excluded from the register
Metadata
Sample number: 3761
Contributor: John Alroy
Enterer: John Alroy
Created: 2021-06-05 16:31:31
Modified: 2023-04-29 03:40:39
Abundance distribution
6 species
1 singleton
total count 28
geometric series index: 8.9
Fisher's α: 2.343
geometric series k: 0.6776
Hurlbert's PIE: 0.7989
Shannon's H: 1.6889
Good's u: 0.9643
Each square represents a species. Square sizes are proportional to counts.
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Register
| Lama guanicoe | 7 | 101 kg |
| plus two indeterminate camelid specimens | ||
| Hippocamelus bisulcus | 5 | |
| Pudu puda | 4 | |
| Hippidion saldiasi | 5 | |
| Macrauchenia patachonica | 1 | |
| Lycalopex culpaeus | 6 | 8.0 kg invertivore-carnivore |
| "Dusicyon culpaeus" | ||