A new diatomyid genus and species, Inopinatia balkanica, from the early Oligocene of south-east Serbia is described, and the affinities between the Diatomyidae and Ctenodactylidae are discussed. Inopinatia balkanica nov. gen. nov. sp. seems to have retained its deciduous teeth throughout life just as all other species of the family. The only other diatomyid described from outside south-east Asia which is Pierremus explorator López-Antoñanzas, 2010 is transferred to the thryonomyid species Paraphiomys knolli López-Antoñanzas and Sen, 2005.

中文翻译：

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来自塞尔维亚东南部古近纪的一种新的硅藻纲（啮齿目，哺乳纲），这是该科在欧洲的第一个记录。

描述了塞尔维亚东南部渐新世早期的一个新的双藻类属和新种Inopinatia balkanica ，并讨论了双藻科和栉指藻科之间的亲缘关系。巴尔干的 Inopinatia 11 月 将军 十一月 sp。与该科的所有其他物种一样，它似乎终其一生都保留着乳牙。在东南亚以外描述的唯一的其他双藻类动物是Pierremus 探险家López-Antoñanzas，2010 年，被转移到金线鼠属物种Paraphiomys knolli López-Antoñanzas 和 Sen，2005 年。