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Revista mexicana de ciencias geológicas
versión On-line ISSN 2007-2902versión impresa ISSN 1026-8774
Resumen
CRUZ, Laura Edith; BARGO, María Susana; TONNI, Eduardo Pedro y FIGINI, Aníbal Juan. Radiocarbon date on megafauna from the late Pleistocene-early Holocene of Córdoba province, Argentina: Stratigraphic and paleoclimatic significance. Rev. mex. cienc. geol [online]. 2010, vol.27, n.3, pp.470-476. ISSN 2007-2902.
A radiocarbon date (7550 ± 60 yr 14C BP) was obtained from bone collagen of an extinct ground sloth (Scelidotherium leptocephalum) from the locality of Río Cuarto (Córdoba province, Argentina). The fossil remains were recovered from the La Invernada Formation (late Pleistocene- Holocene). The date presented in this paper is the first radiocarbon date obtainedfrom megafauna in Córdoba province, Argentina. It supports the temporal assignation of the La Invernada Formation to the late Pleistocene-early Holocene, and it will allow correlation of these sediments with climatic events that took place during this time. Moreover, it is the youngest radiocarbon date from megamammals recorded in central Argentina.
Palabras llave : geochronology; radiocarbon date; Scelidotherium; ground sloth; late Pleistocene-early Holocene; Córdoba; Argentina.