侏罗纪燕辽生物群贼兽类牙齿发育双出齿和异时发育的证据

毛方园, 郑晓廷, 王孝理, 王元青, 毕顺东, 孟津

Evidence of diphyodonty and heterochrony for dental development in euharamiyidan mammals from Jurassic Yanliao Biota

MAO Fang-Yuan, ZHENG Xiao-Ting, WANG Xiao-Li, WANG Yuan-Qing, BI Shun-Dong, MENG Jin

Fig. 6 Tooth condition of Shenshou lui (WGMV-001, paratype 1) A, B. CL images showing the two cusped upper incisors, closed root of the lower incisor, absence of tooth germ, and wear condition of the cheek teeth; C, D. optic images showing the wear condition of the right lower cheek teeth (C) and the left lower cheek teeth (D)