PLATE XLII. 



SKULL OF TYPE OF TRICERATOPS BREVICORNUS HATCHER. 



(See p. 141.) 



Plate prepared under the direction of Hatcher. 



Type specimen, No. 1834, Yale University Museum. Palatal view. 



bo, basioccipital. pa, parietal. 



dc, dental channel. pal, palatine. 



ep, epoccipital. pmx, premaxillary. 



exo, exoccipital. pt, pterygoid. 



ju, jugal. gu, quadrate. 



mx, maxillary. r, rostral. 



oc, occipital condyle. sq, squamosal. 

 One-eighth natural size. 



282 



