Abstract

MARCHIONNI, Laura et al. Actualistic taphonomy at the Bosques Petrificados de Jaramillo, National Park, Santa Cruz province. Rev. Mus. Antropol. [online]. 2022, vol.15, n.3, pp.235-258. ISSN 1852-060X.  http://dx.doi.org/:http://doi.org/10.31048/1852.4826.v15.n3.38000.

Abstract This work is part of the actualistic study program that we are developing within the framework of our archaeological research in the NW of the Deseado Massif (Santa Cruz, Argentina). Its objective is to identify the different agents and taphonomic processes that act modifying the bone remains deposited in the different geomorphological units of the Jaramillo Petrified Forests National Park (PNBPJ), to evaluate which of these microenvironments offer extreme preservation conditions (good vs. bad). To achieve the objective, we carry out the systematic survey by transects and register the remains of modern vertebrates distributed in different geomorphological units, previously defined. The trends obtained are discussed with those generated from the same methodology in the Los Toldos, La Huella and Laguna Sierras Blancas sectors, located to the northwest of the PNBPJ. The results indicate that in the PNBPJ the high plateaus are the geomorphological unit where there is less preservation of the bone record, and that the intermediate plateaus correspond to the units where there are more possibilities of locating contexts in open-pit stratigraphy. The observations made coincide with those previously made in the northern sector of the massif about the destructive potential of the high plateaus and contribute to the knowledge of the processes of preservation and destruction of the bone record that operate in the different microenvironments of the sector. The results obtained are useful for the advancement of archaeological research in the study area.

Keywords : Deseado Massif; Zooarchaeology; Regional Taphonomy; Differential preservation; Geomorphological units.

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