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. 1 A new choristodere specimen from Shandong Province A. map of the fossil locality in Shandong, China; B. photos of the new specimen IVPG-T002 in dorsal (left) and ventral (right) views; C. paleogeographic map of Asia in the Early Cretaceous (not to scale), modified from Matsumoto et al. (2015), red triangle represents the fossil locality Abbreviations: EUR. Europe; INC. Indo-China; J. Japan; K. Korea; KAZ. Kazakhstan; MON. Mongolia; NCB. North China Block; SCB. South China Block; SH. Shan Thai; SIB. Siberia