Presencia del bóvido &lt;i&gt;Austroportax&lt;/i&gt; en el yacimiento mioceno de Batallones-1 (MN 10, cuenca de Madrid, España)

M Sánchez,J Morales,V Quiralte

doi:10.3989/egeol.40714.211

Abstract

Los restos de bóvidos son excepcionalmente raros en los yacimientos del Cerro de los Batallones. Sin embargo, en Batallones-1 se han hallado restos mandibulares y maxilares de un individuo juvenil perteneciente a una especie de bóvido de talla grande. En el presente trabajo describimos estos fósiles y los asignamos al género europeo Austroportax (Sickenberg, 1829). Los fósiles quedan nombrados como Austroportax sp. debido a la ausencia de material diagnóstico adicional perteneciente a esta especie.

Highlights

Batallones-1 was the first of the 9 fossil sites discovered and excavated in the Cerro de los Batallones (Batallones butte), located in the South-Central area of the Cenozoic Madrid Basin
Cerro de los Batallones is constituted of a sedimentary sequence which comprises three units, all of them deposited in terrestrial environments during the early late Miocene
Batallones-1 is remarkably famous for its spectacular carnivoran fossils, other macromammalian taxa have been recovered, i.e. perissodactyls and cetartiodactyls (Morales et al, 2000, 2004, 2008; Sánchez et al, 2009)

Summary

Introduction

Batallones-1 was the first of the 9 fossil sites discovered and excavated in the Cerro de los Batallones (Batallones butte), located in the South-Central area of the Cenozoic Madrid Basin. The fossil bones are included in a sedimentary matrix that cuts discordantly the three units of the butte (see Domingo et al, 2011 for a thorough geological characterization of the fossil sites in the butte) This fact led to the proposal that the fossil acumulation was due to the presence of cavities formed as a consequence of a pseudokarstic process known as piping (Pozo et al, 2004; Domingo et al, 2011). Out by Morales et al (2008), in spite of the fact that the Bovidae were diversifying in the later Miocene, they are not well represented in any of the sites in the Cerro de los Batallones. In this paper we describe these scarce remains, assigning them to the European genus Austroportax (Sickenberg, 1929)

Materials and methods

Discussion