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: Evidence from the Arroyo Seco 2 site. Journal of Archaeological Science 12:673-683 [ER 3108]
Country: Argentina
State: Buenos Aires

Coordinate: 38° 21' 38" S, 60° 14' 39" W
Basis of coordinate: stated in text
Geography comments: Coordinates reported in Politis 2016,
7 dates that range from 8461+/-74 to 5793+/-64.
Climate and habitat
Lithology: sandstone
Taphonomic context: human accumulation, 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), nad (Rhea americana), small rodents, and armadillos. "

Paper is explaining about subsistence hunter-gatherer strategies shifting toward smaller-bodied prey.
Life forms: ungulates, other large mammals, birds
Sampling methods: quarry
Sample size: 1347
Years: 1979 - 2015
Sampling comments: From 1979 to the most recent excavations in 2015, a total of 314 m2has been excavated
Sample: 3395
Contributor: Aniko Toth
Enterer: Aniko Toth
Created: 2019-08-29 15:10:21
Modified: 2019-08-29 15:10:21
Abundance distribution
4 species
0 singletons
total count 1347
standardised richness: 4.0
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
Lama guanicoe1164
Ozotoceros bezoarticus159 browser-grazer
Rhea americana2123 kg
781 eggshells also present
Eutatus seguini3