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The Neogene mammalian faunas of Ertemte and Harr Obo in Inner Mongolia (Nei Mongol), China. — 13. The generaMicrotodon andAnatolomys (Rodentia, Cricetidae)

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Abstract

New extensive tooth material of late Miocene and early Pliocene microtoid cricetids (Mammalia, Rodentia) from Inner Mongolia (PR of China) is described from their type locality and adjacent area. It belongs toMicrotodon atavus and the more rareAnatolomys teilhardi, which both were known so far only by a few jaw fragments. There are now more than 2500 isolated teeth available which document the high morphological variation of single tooth structures. In contrast toAnatolomys, which had not previously been reported with certainty from Europe, but may be represented by “Wartamys”kowalskii from Podlesice (Poland),Microtodon is widespread in Europe. However,Microtodon material was treated mostly as a separate genus: “Baranomys”. The high morphological variation inMicrotodon teeth from Ertemte clearly demonstrates that the European “Baranomys” is without any doubt identical to the East AsianMicrotodon. The European genera “Celadensia” and less probablyBjornkurtenia also may be identical with one of the East Asian microtoid cricetids.

Kurzfassung

Neues, umfangreiches Gebiss-Material der spät-obermiozänen und unterpliozänen microtoiden CricetidenMicrotodon atavus undAnatolomys teilhardi (Mammalia, Rodentia) von der Typlokalität Ertemte und der nahe gelegenen Fundstelle Harr Obo in der Inneren Mongolei (VR China) wird beschrieben. Es handelt sich um mehr als 2500 Molaren der bisher nur aus wenigen Kieferfragmenten bekannten Nagetiere, die nunmehr in der Variabilität ihrer Zahnkronen besser bekannt sind. Die Beziehungen zu europäischen, bisher meistens unter dem NamenBaranomys beschriebenen Vertretern dieser Gruppe werden erneut diskutiert. WährendAnatolomys bisher in Europa nicht sicher bekannt war, möglicherweise aber in der Art„Baranomys“ (=Wartamys) kowalskii aus Podlesice/Polen repräsentiert ist, hatMicrotodon („Baranomys”) eine weitere Verbreitung in Europa. Die morphologische Variabilität vonMicrotodon aus Ertemte läßt keinen Zweifel daran bestehen, dass die europäische Gattung„Baranomys“ mit der ostasiatischen GattungMicrotodon identisch ist, möglicherweise auch„Celadensia“, weniger wahrscheinlich auchBjornkurtenia.

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  1. Department für Geo- und Umweltwissenschaften, Sektion Paläontologie, Ludwig-Maximilians-Universität München, Richard-Wagner-Str. 10, D-80333, München

    Volker Fahlbusch & Markus Moser

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  1. Volker Fahlbusch
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  2. Markus Moser
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Correspondence to Volker Fahlbusch.

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Fahlbusch, V., Moser, M. The Neogene mammalian faunas of Ertemte and Harr Obo in Inner Mongolia (Nei Mongol), China. — 13. The generaMicrotodon andAnatolomys (Rodentia, Cricetidae). Senckenbergiana lethaea 84, 323–349 (2004). https://doi.org/10.1007/BF03043475

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