Arroyo Seco 2
Basic information
Sample name: Arroyo Seco 2
Reference: D. J. Rafuse. 2017. Early to Middle Holocene subsistence strategies in the Pampas region:\nEvidence from the Arroyo Seco 2 site. Journal of Archaeological Science 12:673-683 [ER 3108]
Geography
Country: Argentina
State: Buenos Aires
Coordinate: 38° 21' 38" S, 60° 14' 39" W
Coordinate basis: stated in text
Time interval: Holocene
Max Ma: 0.008461
Min Ma: 0.005793
Age basis: radiocarbon (uncalibrated)
Geography comments: Coordinates reported in Politis 2016, https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0162870
there are seven uncalibrated 14C dates that range from 8461 +/- 74 to 5793 +/- 64 B.P.
there are seven uncalibrated 14C dates that range from 8461 +/- 74 to 5793 +/- 64 B.P.
Environment
Lithology: sandstone
Taphonomic context: human accumulation
Archaeology: stone tools
Habitat comments: "Unit Y: This unit is a homogeneous deposit of brown sandy loess (7.5 YR5/2) with variable thickness between 0.3 and 0.4 m. It consists of a silty sand deposit"
"The Unit Y contains the highest frequency of lithic artifacts and extant fauna remains which include guanaco (Lama guanicoe), pampas deer (Ozotoceros bezoarticus), nañdù (Rhea americana), small rodents, and armadillos"
Paper is explaining about subsistence hunter-gatherer strategies shifting toward smaller-bodied prey
"The Unit Y contains the highest frequency of lithic artifacts and extant fauna remains which include guanaco (Lama guanicoe), pampas deer (Ozotoceros bezoarticus), nañdù (Rhea americana), small rodents, and armadillos"
Paper is explaining about subsistence hunter-gatherer strategies shifting toward smaller-bodied prey
Methods
Life forms: ungulates,other large mammals,birds
Sampling methods: quarry
Sample size: 1347 specimens
Years: 1979 - 2015
Sampling comments: From 1979 to the most recent excavations in 2015, a total of 314 m2has been excavated
Metadata
Sample number: 3395
Contributor: Aniko Toth
Enterer: Aniko Toth
Created: 2019-08-29 15:10:21
Modified: 2023-04-03 07:30:10
Abundance distribution
4 species
0 singletons
total count 1347
extrapolated richness: 4.4
Fisher's α: 0.507
geometric series k: 0.1371
Hurlbert's PIE: 0.2385
Shannon's H: 0.4569
Good's u: 1.0000
Each square represents a species. Square sizes are proportional to counts.
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Register
| Lama guanicoe | 1164 | 101 kg |
| Ozotoceros bezoarticus | 159 | 20 kg browser-grazer |
| Rhea americana | 21 | 23 kg |
| 781 eggshells also present | ||
| Eutatus seguini | 3 | |
Current reference:
Kowalski 1956 (ER 2370)