Abstract: Although discussion on the phylogenetic classification of jumping mice, birch mice and jerboas is still ongoing, we follow the opinion that the two families Zapodidae and Dipodidae are included in the superfamily Dipodoidea and four subfamilies in the family Dipodidae (Qiu , 1996; Daxner-Höck, 1999) , i. e. Allactaginae Vinogradov, 1925 , Dipodinae Fischer de Waldheim, 1817 , Cardiocraniinae Vinogradov, 1925 and Euchoreutinae Lyon, 1901. The oldest record of Dipodidae is the genus Protalactaga from the middle Miocene of Quantougou , Gansu and Tunggur, Nei Mongol, which might be derived from a Plesiosminthus-like Oligocene Zapodidae ancestor (Young, 1927; Qiu, 1996, 2000 ). At the present, Dipodidae are restricted in the Palearctic Region. They are adapted to an arid environment and distributed in semi-desert or desert regions of northern Africa, southern Europe, central and northern Asia. In China, there are 7 genera and 13 species mainly living in the arid northwestern regions ( Wang , 2003 ) . The dipodids described below were collected by the scientists of the Sino-Finish cooperative project in vertebrate paleontology and stratigraphy from Lantian, Shaanxi, during the field seasons of 1997 —2000.

摘要： 描述了陕西蓝田晚中新世早期灞河组的4属4种跳鼠：蓝田原跳鼠(新种)(Protalactaga lantianensis sp．nov．)、副跳鼠(未定种)(Paralactaga sp．)、原始三趾心颅跳鼠(新种)(Salpingotus primitivus sp．nov．)和小五趾心颅跳鼠(新种)(Cardiocranius pusillus sp．nov．)。蓝田原跳鼠兼有原跳鼠和副跳鼠的特征，可能是原跳鼠向副跳鼠进化过程中产生的一种过渡类型。副跳鼠和原始三趾心颅跳鼠及小五趾心颅跳鼠分别代表了副跳鼠