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Vertebrata Palasiatica ›› 2008, Vol. 46 ›› Issue (1): 21-30.

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ADDITIONAL RODENT MATERIAL FROM HOULDJIN FORMATION OF ERENHOT, NEI MONGOL, CHINA

WANG Ban-Yue   

  • Online:2008-03-15 Published:2008-03-15

内蒙古二连浩特呼尔井组的某些啮齿类化石

王 伴 月   

Abstract: Dipodids, aplodontids and sciurids recently collected from the Houldjin Formation in Erenhot, Nei Mongol, were described. All of them represent the first records of their kinds in Late Eocene of Nei Mongol. The discovery has not only expanded the distribution of these taxa inAsia, added new elements to the Houldiin fauna, but also provided new information in age determination of the Houldjin Formation. All the fossils described here were collected from IVPP Loc.1988001, east to the Railway Station of Erenhot.

摘要: 描述了产自二连浩特呼尔井组的啮齿类化石:Allosminthus cf.A. diconjugatus, A. majusclus, A. ernos, Prosciurus pristinus sp. nov 和Marmotini gen. et sp. Indet.。Prosciurus pristinus的特征是P4的前附尖较弱小,p4无下中附尖和下中尖,以及下次脊较低弱等。认为Banyuesminthus是Allosminthus的后出同物异名。上述啮齿类的发现也证明呼尔井组的时代为晚始新世。