PLATE XXXV. 



SKULL OF TYPE OF TRICERATOPS PRORSUS MARSH. 



(See p. 127.) 



Plate prepared under the direction of Marsh. 



Type specimen, No. 1822, Yale University Museum. Superior view. 



/, frontal. pf t pdstfrontal. 



If, lachrymal foramen. prf, prefrontal. 



mx, maxillary. pmx, premaxillary. 



nas, nasal. r, rostral. 



nh, nasal horn. S q, squamosal. 



pa, parietal. so h, supraorbital horn core. 

 One-fourth natural size. 



268 



