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报道了产自贝加尔湖区中中新世Aya洞穴的戈壁古仓鼠(Gobicricetodon)一新种G.filippovisp.nov.。该种以较小的个体和牙齿上的一些原始特征区别于该属其他种类。先前的研究认为Gobicricetodon与近古仓鼠(Plesiodipus)同属于戈壁古仓鼠亚科,然而,它们与欧亚大陆一些置于古仓鼠亚科(Cricetodontinae)内的属在牙齿形态上的高度相似性表明其亲缘关系。为了理清Gobicricetodon和Plesiodipus与Cricetodontinae之间的系统发育关系,也为了阐明这一类群属和属以上级别的分类,使用Mesquite2.72软件作了分支系统学分析。结果获得了3个主要的分支类群,Gobicricetodon,Plesiodipus,Mixocricetodon和Tsaganocricetus同属于其中的一个分支。令人惊奇的是,一些欧洲古仓鼠(Cricetodon)的种,包括其模式种C.sansaniensis也在这一分支内。此外,支序分析还显示上述类群可能起源于欧亚大陆西部的Cricetodon支系。分析的另一项结果指示,Cricetodon属显然是一个多系类群,需要进一步划分为多个属。
A new species, G. filippovisp. Nov, from the Gobi ricetodon from the Miya caves of the Miocene in the Baikal region was reported. This species differs from the other species of the genus in that it is a smaller individual and some of the original features on the tooth. Previous studies suggested that both Gobicricetodon and the ancient Hamster (Plesiodipus) belong to the subdivision of the ancient Gobiognia, however, their high similarity to some of the Euclidian beings in the Cricetodontinae indicates their relatives relationship. In order to clarify the phylogenetic relationships between Gobicricetodon and Plesiodipus and Cricetodontinae, and also to clarify the taxonomic and above-level taxonomic classification, Mesquite2.72 software was used to make a phylogenetic analysis. The results obtained three main branch groups, Gobicricetodon, Plesiodipus, Mixocricetodon and Tsaganocricetus belong to one of the branches. Surprisingly, some European species of Cricetodon, including its species C.sansaniensis, are also within this branch. In addition, the sequence analysis also shows that the above groups may originate from Cricetodon clan in western Eurasia. Another result of the analysis indicates that the Cricetodon genus is clearly a multi-family group that needs to be further divided into multiple genera.