二叠纪脑包沟组的四足动物群——4. 二齿兽类的多样性
刘俊

The tetrapod fauna of the upper Permian Naobaogou Formation of China— 4. the diversity of dicynodonts
LIU Jun
Fig. 3 Photos of Morphogroup IIIIVPP V 23879 in lateral (A) and anterior (B) views; V 23880 in lateral (C) and anterior (D) views Scale bars equal 2 cm