PLATE XLIII 



SKULL OF TYPE OF TRICERATOPS ELATUS MARSH. 



(See p. 135.) 

 Plate prepared under the direction of Hatcher. 



Type specimen, No. 1201 , U. S. National Museun 

 ju, jugal. 

 lac, lachrymal. 

 If, lachrymal foramen. 

 mx, maxillary. 

 nas, nasal. 

 nh, nasal horn core. 

 no, nasal opening. 

 o, orbit. 

 pa, parietal. 



One-eighth natural size. 



Left lateral view. 



pf, postfrontal. 



pin, premaxillary. 



pif, prefrontal. 



qj, quadra to jugal. 



(pi, quadrate. 



r, rostral. 



sq, squamosal. 



soh, supraorbital horn core. 



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