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January 2017
Vol 40-3
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Print ISSN: 0031-0247
Online ISSN: 2274-0333
Frequency: biannual

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Rongeurs nouveaux de l'Oligocène Moyen d'Espagne.
Louis Thaler
Keywords: Cricetidae; Oligocene; Pseudocricetodon; Rodents; Theridomys

doi: 10.18563/pv.2.5.191-207
 
  Abstract

    Description of four new rodents from a recently discovered locality at Montalban. Theridomys crusafonti nov. sp. is considered as the ancestry of T. Iembronicus. Theridomys varian: nov. sp. includes «Theridomys» morphotypes and «Blainvilllimys» morphotypes; it could be ancestral to B. blainvillei. Pseudoltinomys nanus nov. sp. represents a new lineage paralleling in evolution that of P. gaillardi (which is equally found at Montalban). Pseudocricetodon montalbanensis nov. gen., nov. sp. designates a lineage of very small Cricetidae accompanying Eucricetodon. With these well defined new species and six others present in the locality, Montalban appears as the best faunal reference point within the biochronologic zone of La Sauvetat.
    As an annex, discussion of two rodent specimens from the classic localíty of Tárrega, close in age to that of Montalban. 


  Article infos

Published in Vol. 02, Fasc. 5 (1969)

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