Abstract: Based on materials collected from Dashankou, Yumen, Gansu, 3 new genera and species—lngentidenscorridoricus, Phratochronis qilianensis and Anakamacops petrolicus belonging to Anthracosauria and Temnospondyli, are described in the present paper. Associated with the amphibians are abundant therapsid and bolosaur, which were described previously (Li and Cheng, 1995, 1997; Cheng and Ji, 1996; Cheng and Li, 1997). The Dashankou fauna is the most diverse and abundant tetrapod fauna so far known from the Permian deposits of China. Most members of the fauna show primitive features of lower tetrapods and are more closely related to those of Upper Permian of Russian.

摘要： 首次记述了大山口低等四足类动物群中的两栖类。其中走廊泰齿螈(Ingentidens corridoricus gen. et sp. nov.)和祁连兄弟迟滞螈(Phratochronis qilianensis gen. et sp. nov.)为石炭蜥目迟滞鳄科(Anthracosauria, Chroniosuchidae)的新成员。前者个体较大，具为数众多的犬齿状齿和齿骨表面的齿骨沟，冠状骨无齿，下颌表面纹饰蜂窝型;后者个体较小，侧生型齿，上颌仅有3个粗大的犬齿状齿。石油似卡玛螈(Anakamac