82 
Plate IX 
Right ramus of Lambeosaurus Inmbei Parks. Typo, No. 2899, Geol. Surv., Can. Internal 
view. An. angular; Ar, articular: Cp, coronoid process; D, dentary: Meg, Meckel’s groove: Par 
preart icular; Sa, surangular. About one-third natural size. (Page 35.) 
