Disturbance of archaeological materials by Chaetophractus villosus at El Guanaco Locality, Pampean Region, Argentine

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  • Disturbance of archaeological materials by Chaetophractus villosus at El Guanaco Locality, Pampean Region, Argentine

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Title


Disturbance of archaeological materials by Chaetophractus villosus at El Guanaco Locality, Pampean Region, Argentine

Subject

S5-2, S6-3, General session, poster

Description

Abstract:

Chaetophractus villosus´ (Dasypodidae) activity, a species with burrowing habits, is one of the natural causes of disturbance of archaeological deposits at El Guanaco Locality, in the pampean region, Argentina. This species modifies the deposits in different ways. First, it displaces material when digging and moving along its caves. Second, materials that do not belong to the original deposits are incorporated by the recolonization of the caves by other species, such as anourous and birds. On the other side, the “armadillos’” caves are keys for finding archaeological evidence in areas of low or null visibility.

This contribution is part of a greater project on taphonomic analysis of Chaetophractus villosus (a Pampean armadillo), whose final aim is to provide archaeological expectations about the extent of the disturbation produced by this species. In this opportunity, two items are studied: the type and dimensions of the displaced archaeological materials and their distribution. In this paper we present the results of a comparative analysis between the archaeological materials collected from 15 currently active caves, and the remains collected in the sedimentary matrix identified as cave filling during excavations of sites 1 and 2.

As a general tendency, it was possible to establish that Chaetophractus villosus removes both lithic and faunal materials, measuring 3 cm2 or smaller; exceptionally, elements of 5 cm2 are moved. The distribution registered during the excavations of currently active caves indicates that there is a concentration of materials deposited around the caves´ mouths, but this pattern was not recorded while excavating the sediments filling the caves.

Authors:

ROMINA Frontini

Affiliations

CONICET, Departamento de Humanidades, Universidad Nacional del Sur, 12 de octubre y San Juan, 5to piso, of. 10. (8000), Bahía Blanca, Buenos Aires, Argentina, frontiniromina@gmail.com

Creator

Romina, Frontini

Date

August 2010

Contribution Form

Document Item Type Metadata

Citation

Romina, Frontini. " Disturbance of archaeological materials by Chaetophractus villosus at El Guanaco Locality, Pampean Region, Argentine ," in BoneCommons, Item #1499, http://alexandriaarchive.org/bonecommons/items/show/1499 (accessed August 7, 2020).