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, postfrontal. 



If, lachrymal foramen. prf, prefrontal. 



mx, maxillary. prnx, premaxillary. 



nas, nasal. r, rostral. 



nh, nasal horn. sq, squamosal. 



pa, parietal. soh, supraorbital horn core. 

 One-fourth natural size. 



268 



