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Evolution of the genus Eucricetodon (Rodentia, Mammalia) from the Valley of Lakes (Mongolia): a taxonomical description and update on the stratigraphical distribution

  • López-Guerrero, Paloma Geologisch und paläontologische AbteilungNaturhistorisches Museum Wien, Austria
  • Maridet, Olivier Collection Management CenterJurassica MuseumPorrentruy, Switzerland - Department of Geosciences, Earth Sciences, University of Fribourg, Switzerland
  • Daxner-Höck, Gudrun Geologisch und paläontologische AbteilungNaturhistorisches Museum Wien, Austria
    01.03.2017
Published in:
  • Palaeobiodiversity and Palaeoenvironments. - 2017, vol. 97, no. 1, p. 67–89
German The Oligocene fossil deposits from Valley of Lakes in Central Mongolia have provided a wealth of rodent fossils. Among these, cricetids are a very important part. To date, only the Miocene genera have been described in detail. Here, we focus on the Oligocene genus Eucricetodon from this region. Eucricetodontinae are the most abundant fossils in the Oligocene Valley of Lakes faunas. The present study consists of the description of five species of cricetid rodents from 43 localities ranging in age from the early Oligocene to the early-late Oligocene. In addition to Eucricetodon asiaticus described in Mongolia in 1923, we have found Eucricetodon bagus and Eucricetodon jilantaiensis that were described from Nei Mongol and Eucricetodon occidentalis discovered in Kazakhstan. This taxonomical study provides new information regarding the evolution of the Cricetidae in Central and Eastern Asia during the Oligocene and, more particularly, regarding their phylogenetic relationships and the evolutionary trends.
Faculty
Faculté des sciences et de médecine
Department
Département de Géosciences
Language
  • English
Classification
Palaeontology
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/305598
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