80 
Plate VIII 
Skull of Lambcosaurus lanibei Parks. No. 351, Geol. Surv., Canada. Viewed from the left 
side but reversed so as to make it more convenient for comparison with the type. Dn, dentary; 
J, jugal; L, lachrymal; Mx, maxillary; N, nasal; no, external nares; Pd, predentary; Pmx, pre- 
maxillary; Pof, postorbital; Prf, prefontal; Q, quadrate; Qj, q u ad rato jugal; Sa, surangular; Sq, 
squamosal. About one-sixth natural size. (Page 35.) 
