Pilauco (lower PB-7)
Basic information
Sample name: Pilauco (lower PB-7)
Reference: R. Labarca. 2020. Taphonomy of the Pilauco Site, northwestern Chilean Patagonia. In Pilauco: A Late Pleistocene Archaeo-paleontological Site (eds. M. Pino, G. Astorga), pp. 123-156 [ER 3388]
Geography
Country: Chile
Coordinate: 40° 34' 12" S, 73° 6' 12" W
Coordinate basis: stated in text
Time interval: Late Pleistocene
Max Ma: 0.01365
Min Ma: 0.012173
Age basis: radiocarbon (uncalibrated)
Geography comments: coordinate is given by Pino et al. (2020)
numerous uncalibrated 14C dates range from 13650 +/0 70 to 12173 +/- 42 ybp
numerous uncalibrated 14C dates range from 13650 +/0 70 to 12173 +/- 42 ybp
Environment
Lithology: sandstone
Taphonomic context: carnivore accumulation
Archaeology: stone tools
Habitat comments: in PB-7 there are "stone artifacts, a large number of plant and invertebrate remains. It corresponds to a dark-brown organic matrix (10YR 3/1) filling the porous space of the sand that supports the sediment"; the sediments are colluvial instead of fluvial and are not paleosols (Pino et al. 2020)
"No human marks of any kind were identified" but there is carnivore damage and the "site corresponded mainly to a place of feeding for large extinct felids" on a gomphothere
"No human marks of any kind were identified" but there is carnivore damage and the "site corresponded mainly to a place of feeding for large extinct felids" on a gomphothere
Methods
Life forms: ungulates,other large mammals,birds
Sampling methods: quarry
Sample size: 67 specimens
Years: 2010 - 2017
Sampling comments: the gomphothere mostly or entirely represents a single individual
Pino et al. (2013, Quaternary International) provide a different list for all of PB-7 combined that includes additional species apparently not present in the lower part
Pino et al. (2013, Quaternary International) provide a different list for all of PB-7 combined that includes additional species apparently not present in the lower part
Metadata
Sample number: 3767
Contributor: John Alroy
Enterer: John Alroy
Created: 2021-06-06 19:08:51
Modified: 2023-02-24 06:01:28
Abundance distribution
5 species
2 singletons
total count 67
geometric series index: 11.6
Fisher's α: 1.250
geometric series k: 0.3593
Hurlbert's PIE: 0.1825
Shannon's H: 0.4682
Good's u: 0.9706
Each square represents a species. Square sizes are proportional to counts.
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