190 Professor Marsh's Monograph of the Dinocerata. 
“The molar teeth in Dinocerata appear to resemble more 
closely the corresponding teeth in the genus Coryphodon than 
se of any other animal. The general dentition, howe is 
mediu 
hace tenance eae the Dinocerata. 
Figure 22.—Skull of posted ingens, Marsh; with brain-cast in ponition; seen 
FIGURE 23. eae of Beads laticeps, senna. with planters in serie Both 
gt ares bi pea. gs natural size. f aie al bone maxillary 
bone axillary Cmte rance ; ual tniet : nasal pro- 
tuberance; 7 P, ro bone; p’, sarees: ec atronesion: pm, pre- 
maxillary bone 
Tue Bran. 
“The brain of the Dinocerata is one of the most peculiar 
features of the group. It is especially remarkable for its 
diminutive size. It was proportionately smaller than in any 
