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      New evidence of the sabertooth cat Smilodon (Carnivora: Machairodontinae) in the late Pleistocene of southern Chilean Patagonia Translated title: Nueva evidencia del gato dientes de sable Smilodon (Carnivora: Machairodontinae) en el Pleistoceno tardío de Patagonia meridional chilena

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          Abstract

          Southern Patagonia is rich in late Pleistocene mammals, especially herbivores such as Camelids, Equids and Xenarthrans. Carnivores, on the other hand, are not commonly found in the paleontological record. One genus, Smilodon, is of particular interest because its presence in the region has not been demonstrated. In this paper, we present new fossil dental evidence that supports the presence of Smilodon populator (Lund) in the region. This evidence corresponds to the most southern record of the genus in the world, and the final step in the colonization of South America after the Great American Biotic Interchange. An AMS radiocarbon date on teeth indicates that the remains from Southern Chilean Patagonia are the most recent record for the genus in South America.

          Translated abstract

          Surpatagonia es particularmente rica en mamíferos finiplesitocenos, particularmente camélidos, équidos y xenartros. Los carnívoros, por su parte, se encuentran representados en menor número en el registro paleontológico. Dentro de estos, el género Smilodon, es de particular interés debido a que su presencia en la región no ha sido convincentemente demostrada. En este trabajo presentamos evidencia dental que permite confirmar la presencia de Smilodon populator (Lund) en la región. Esta evidencia corresponde al registro más sureño de este taxón y al paso final en la colonización de América del Sur después del Gran Intercambio Biótico Americano. Un fechado radiocarbónico directo AMS indica que los restos de Patagonia del Sur corresponden a los registros más tardíos para este género en el subcontinente.

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          Most cited references60

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          On the natural arrangement of vertebrose animals.

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            Evolution of the extinct Sabretooths and the American cheetah-like cat.

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              Three Late Quaternary pollen diagrams from Southern Patagonia and their palaeoecological implications

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                Author and article information

                Journal
                rchnat
                Revista chilena de historia natural
                Rev. chil. hist. nat.
                Sociedad de Biología de Chile (Santiago, , Chile )
                0716-078X
                June 2010
                : 83
                : 2
                : 299-307
                Affiliations
                [01] Punta Arenas orgnameUniversidad de Magallanes orgdiv1Instituto de la Patagonia Chile
                [02] Olavarría orgnameUniversidad Nacional del Centro de la Provincia de Buenos Aires orgdiv1Programa de Doctorado Argentina
                Article
                S0716-078X2010000200010 S0716-078X(10)08300210
                10.4067/S0716-078X2010000200010
                9417af52-a129-4bcb-aa81-3794cb2f5657

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 28 October 2009
                : 29 March 2010
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 40, Pages: 9
                Product

                SciELO Chile

                Categories
                RESEARCH ARTICLE

                Patagonia del sur,Smilodon,taxonomía,Pleistoceno final,southern Patagonia,late Pleistocene,taxonomy

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