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SOBRE LA EDAD DE LA TAFOFLORA DE LA LAGUNA DEL HUNCO, PROVINCIA DE CHUBUT

2013; Asociación Paleontológica Argentina; Volume: 11; Issue: 4 Linguagem: Inglês

1851-8044

Sérgio Archangelsky,

Environmental and Cultural Studies in Latin America and Beyond

An absolute age has been established on the base of K-Ar method. The result is 57 ± 3 m.y., which, after the Harland, Smith and Wilcock Time-scale is equivalent to the Upper Palaeocene. All previous results, based mainly on the comparison of the Hunco taphoflora with that from Pichileufu, in Rio Negro Province and Lora-Coronel of Chile, are discussed. Therefore, the data obtained from the impressions of fossil leaves found in the Hunco and Pichileufu taphofloras can be used in relation to those discussed for other Palaeocene localities already studied in the Golfo de San Jorge and Bororo areas, in the same Province.