新发现的长吻型离龙(双孔亚纲：离龙目)幼年个体——袖珍蒙山龙,兼论新离龙类的个体发育

袁梦, 李大庆, Daniel T. KSEPKA, 易鸿宇

A juvenile skull of the longirostrine choristodere (Diapsida: Choristodera), Mengshanosaurus minimus gen. et sp. nov., with comments on neochoristodere ontogeny

YUAN Meng, LI Da-Qing, Daniel T. KSEPKA, YI Hong-Yu

Fig. 3 The lacrimal foramen of Mengshanosaurus minimus (IVPG-T002) from Xintai, Shandong A. three-dimensional reconstruction of the anterior margin of the left orbit; B. two-dimensional CT slice through the anterior margin of left orbit. The red arrows mark the lacrimal foramen Abbreviations see Fig. 2. Scale bars = 1 mm