New species of Hispanomys (Rodentia, Cricetodontinae) from the Upper Miocene of Batallones (Madrid, Spain)

Authors

  • RAQUEL LÓPEZ-ANTOÑANZAS,

    Corresponding author
    1. Departamento de Paleobiología, Museo Nacional de Ciencias Naturales-CSIC, c/ José Gutiérrez Abascal 2, Madrid 28006, Spain
      ralopan@mncn.csic.es
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  • PABLO PELÁEZ-CAMPOMANES,

    1. Departamento de Paleobiología, Museo Nacional de Ciencias Naturales-CSIC, c/ José Gutiérrez Abascal 2, Madrid 28006, Spain
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  • M. ÁNGELES ÁLVAREZ-SIERRA,

    1. Departamento de Paleontología, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid, c/ José Antonio Novais, 2, Madrid 28040, Spain
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  • ISRAEL GARCÍA-PAREDES

    1. Departamento de Paleobiología, Museo Nacional de Ciencias Naturales-CSIC, c/ José Gutiérrez Abascal 2, Madrid 28006, Spain
    2. Nationaal Natuurhistorisch Museum – Naturalis. P.O. Box 9517, 2300 RA Leiden, The Netherlands
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ralopan@mncn.csic.es

Abstract

Material of Hispanomys (Rodentia, Cricetodontinae) is described from various localities at Batallones (MN10) (Madrid, Spain). All of it belongs to a single species, which differs from the other known species of the genus and a new taxon, Hispanomys moralesi sp. nov., is created for it. The samples from the various localities show differences interpreted as being the result of slight age disparities amongst the different sites. Although they were previously thought to be coeval, Batallones 10 is probably older than Batallones 1, which is possibly older than Batallones 3. Hispanomys moralesi sp. nov. is characterized by several morphological features such as the lack of cingula and mesolophs, the presence of well-developed ectolophs, four- or five-rooted M1, short or absent mesolophids, and reduced and simplified M3. Hispanomys moralesi sp. nov. is a relatively derived species, the evolutionary stage of which is comparable to those of other members of the genus from the Upper Vallesian.

© 2010 The Linnean Society of London, Zoological Journal of the Linnean Society, 2010, 160, 725–747.

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