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Docta Complutense
Article . 2010
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Estudio de los patrones de montandad de Democricetodon laterti (Schaub 1925) en el yacimiento Mioceno de Somosaguas Sur (Pozuelo de Alarcón, Madrid)

Authors: Torroba , Juan; Gómez de la Peña, Laura; Gómez Cano, Ana Rosa; López Guerrero, Paloma; Hernández Fernández, Manuel;

Estudio de los patrones de montandad de Democricetodon laterti (Schaub 1925) en el yacimiento Mioceno de Somosaguas Sur (Pozuelo de Alarcón, Madrid)

Abstract

[ES] Se estudió el patrón de mortandad del roedor Democricetodon larteti en el yacimiento de Somosaguas Sur (Mioceno medio) en función del grado de desgaste de sus terceros molares. Los resultados indican una gran abundancia de elementos muy poco desgastados (individuos juveniles) dentro de la población de estudio. Estos resultados no se ajustan a los patrones obtenidos en otros trabajos con poblaciones de roedores actuales ni con otros yacimientos. En cambio, se muestran claramente coherentes con los datos obtenidos para los macromamíferos de Somosaguas donde también existe una elevada mortandad de individuos juveniles asociada a eventos de gran aridez.

[EN] We studied the pattern of the age of death for Democricetodon larteti, a rodent species from the Somosaguas South fossil site (middle Miocene), in terms of wear degree of its third molars. The results indicate a great abundance of elements with scarce tooth wear (young individuals) in our study population. These results do not fi t in the pattern obtained in other works with modern rodents, or in other fossil sites. However, they are manifestly consistent with the data obtained in previous works with macromammals from Somosaguas, where the existence of high rate of death of young individuals is associated to events of high aridity.

The authors also thank the Unit of Information Resources for Research (URICI-CSIC) for the co-financing of this publication in Open Access.

Trabajo presentado al VIII Encuentro de Jóvenes Investigadores en Paleontología.

Peer reviewed

Country
Spain
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Keywords

Índice de desgaste, Wear index, Democricetodon, Somosaguas South, Rodentia, Somosaguas, Somosaguas Sur, Molars, 2416 Paleontología, 569, Molares, Paleontología

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