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

Table 3 Skull and total length of three species of choristoderes in various developmental stages (mm)

Species Developmental stage Skull length Total length Hyphalosaurus baitaigouensis Adult LPMC R000661) 66 1100 Juvenile BMNHC V0501) 27.0 ~450 “small free-living individual”2) 14.62 NA Embryo3) 7.745 NA Mengshanosaurus minimums (IVPG-T002) Juvenile 35 NA Ikechosaurus pijiagouensis (IVPP V 13283) Adult4) 275 1700