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Revista argentina de antropología biológica

On-line version ISSN 1514-7991


LUNA, Leandro H; FLENSBORG, Gustavo  and  MARTINEZ, Gustavo. Relaciones biológicas en grupos cazadores-recolectores de la transición pampeano-patagónica oriental (Argentina) durante el Holoceno tardío: Aportes desde la métrica dental. Rev Arg Antrop Biol [online]. 2017, vol.19, n.2. ISSN 1514-7991.

Bioanthropological and archaeological models propose changes in demography, social organization, population dynamics, and social network interactions among hunter-gatherer groups of northern Patagonia and southern Pampas over the last 1000 years BP. Following this argument, the aim of this paper is to examine, from a dental anthropological perspective, whether the individuals recovered in the lower course of the Colorado river (eastern Pampean-Patagonian transition, Buenos Aires province, Argentina), buried during the late Holocene (ca. 3000-250 years BP), belonged to different biological populations or, on the contrary, whether they shared a common gene pool throughout this period. To achieve this goal, dental metrics were performed on adults from both sexes, recovered from three archaeological sites. The results indicate a similarity in the dispersion of the values obtained, which would allow the inference of certain phenotypic continuity. In this sense, no clear segregations among groups of individuals are observed, so that it is possible to argue that biological differences would not have existed among the human groups that buried their ancestors in the lower course of the Colorado river during the period considered. These data contrast with the information generated in neighboring areas (e.g., western Pampas), indicating that during the final late Holocene (ca. 1000-250 years BP) different processes and population dynamics (e.g., regionalization) developed at a macro-regional level.

Keywords : Pampas; Northern Patagonia; Dental anthropology; Population dynamics; Phenotypic continuity.

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