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Ameghiniana

versión impresa ISSN 0002-7014

Resumen

POMI, Lucas H. Miring In The Lujan Formation (Late Pleistocene): Taphonomic Analysis Of A Specimen Of Hippdion Owen From The Salado River Basin (Buenos Aires Province, Argentina). Ameghiniana [online]. 2009, vol.46, n.1, pp. 17-25. ISSN 0002-7014.

The interesting finding of a Hippidion specimen in sediments referred to the Guerrero Member of the Luján Formation (late Pleistocene) in northeast Buenos Aires Province is reported. Preliminary considerations indicate that the bearing level represents a deposition environment similar to existing poorly-drained flood plains. Analysis of several taphonomic characteristics (e.g. position, degree of articulation, soft tissue molds) allows considering that the specimen was incorporated through swamp-miring that also led to its death. Available palaeoautoecological information for this taxon allows the possibility that the accumulation environment of this specimen was a habitat used regularly by the taxon. Reconstruction of the taphonomic path of this specimen admits the assumption that at least some parts of the floodplain could have worked as swamp-miring sites. The occurrence of this taphonomic mode in the Salado River Basin is particularly relevant because it accounts for the relative abundance of relatively complete and well-articulated skeletons, and it also evidences possible taphonomic bias related to the frequency of use of this environment by each taxon.

Palabras llave : Taphonomy; Natural traps; Hippidion; Luján Formation.

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