SOME EARLY MAMMALS 



261 



the borders of an old lake of Miocene age. The Brontops was a 

 heavy, massive animal, larger than any of the Dinocerata, with a 

 length of twelve feet, not including the tail, and a height of eight 

 feet. The limbs are shorter than those of the elephant, which 

 it nearly equalled in size. As in the tapir, there were four toes 

 to the front limbs, and three to the hind limbs. Its skull was of 



FIG. 98. Side and top views of skull of Titanotherium, from Miocene 

 strata, North America. 



a peculiar shape, shallow, and very large. That of Brontops 

 ingens is thirty-six inches long, and twenty inches between the 

 tips of the two horns, or protuberances. The creature was 

 probably provided with an elongated, flexible nose, like that of 

 the tapir, but not longer, because the length of the neck shows 

 that it could reach the ground without the aid of a trunk such as 



