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vol.33 issue1AN "OLD-NEW" MEMBER OF THE PATAGONIAN BONE INSTRUMENT SET: THE BONE HAMMERSTAPHONOMY OF THE PUMA-GUANACO INTERACTION AT TORRES DEL PAINE NATIONAL PARK,CHILE author indexsubject indexarticles search
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Magallania (Punta Arenas)

On-line version ISSN 0718-2244

Abstract

L`HEUREUX, GABRIELA L. MORPHOMETRIC VARIATION OF GUANACO BONE REMAINS FROM ARCHAEOLOGICAL SITES OF SOUTHERN PATAGONIA AND TIERRA DEL FUEGO. Magallania [online]. 2005, vol.33, n.1, pp.81-94. ISSN 0718-2244.  http://dx.doi.org/10.4067/S0718-22442005000100006.

The aim of this paper is to evaluate the morphological variation of Lama guanicoe appendicular bone remains recovered from either side of the Magellan strait using a traditional morphometric approach. The analyzed bones are: 1st and 2nd phalanges, distal humeri, and distal metacarpals. The samples are from 6 archaeological and 1 paleontological sites from southern Patagonia, and 4 sites from the Isla Grande of Tierra del Fuego. Two temporal periods were compared: a) Late Pleistocene (ca. 12.000 - 10.000 14C years BP), and b) Late Holocene (ca. 2.000 14C years BP up to the present). Univariate and multivariate statistical techniques were applied. The results obtained show no significant difference in size between Late Pleistocene samples from southern Patagonia and Tierra del Fuego at the level of the 2nd phalanges. In contrast, the comparison of Late Holocene samples from both regions show significant differences in size in all the appendicular elements analyzed. In the latter case, the larger and more robust elements are those from Tierra del Fuego. It is concluded that such differences can be considered as an evidence of the reproductive isolation and vicariance of guanaco populations from both sides of the Magellan Strait occurred after 8.000 14C years BP

Keywords : guanaco morphometrics; southern Patagonia and Tierra del Fuego; Late Pleistocene; Late Holocene.

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