New Material of Dipodid Rodents (Dipodidae, Rodentia) from the Early Miocene of Gashunyinadege, Nei Mongol, China

Yuri Kimura

doi:10.1080/02724634.2010.521535

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1 November 2010 New Material of Dipodid Rodents (Dipodidae, Rodentia) from the Early Miocene of Gashunyinadege, Nei Mongol, China

Yuri Kimura

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J. of Vertebrate Paleontology, 30(6):1860-1873 (2010). https://doi.org/10.1080/02724634.2010.521535

Abstract

Dipodid rodent fossils from Gashunyinadege at ∼17 Ma, one of the oldest Neogene localities in central Nei Mongol, China, include six genera (Heterosminthus, Plesiosminthus, Litodonomys, Sinodonomys, gen. nov., Omoiosicista, gen. nov., and Sicista) and nine species, including four new species (P. vegrandis, sp. nov., L. minimus, sp. nov., S. simplex, sp. nov., and O. fui, sp. nov.). The high diversity and abundance of dipodid rodents in Gashunyinadege indicate the evolution of basal dipodids was centered in Nei Mongol. Omoiosicista is described on the basis of eight isolated teeth and characterized by possessing one autapomorphy. This new taxon shares seven synapomorphies with Sicista, suggesting Sicista is the closest relative.

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Yuri Kimura "New Material of Dipodid Rodents (Dipodidae, Rodentia) from the Early Miocene of Gashunyinadege, Nei Mongol, China," Journal of Vertebrate Paleontology 30(6), 1860-1873, (1 November 2010). https://doi.org/10.1080/02724634.2010.521535

Received: 24 February 2010; Accepted: 1 July 2010; Published: 1 November 2010

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