180 Professor Marsh’s Monograph of the Dinocerata. 
FIGURE 3.—Nasals of Dinoceras mirabile, Marsh ; type specimen. 
FIGURE 4.—Nasals of Tinoceras annec ctens, Marsh. Both figures. oe onoitihe 
natural size. 4, side view; 6, top view; c, front vi 
ei 5.—Posterior surface of skull of Dinocerus mirabile, Marsh. 
URE 6.—Posterior surface of skull of Tinoceras ingens, Marsh. Both gures are 
one-eighth natural size. c, occipital condyle; /, foramen magnum) 
1, lateral crest ; 0, a tal crest; p, post-tympanic process; % ne 
behind temporai fossa, 
