206 



THE WORLD OF LIFE 



London Claj. It had a heavy body, five-toed stumpy feet, 

 and a complete set of 22 teeth in each jaw adapted for a vege- 

 table diet ; but no defensive tusks or horns. Other allied spe- 

 cies were much smaller, and all were remarkable for a very 



small brain. 



But a little later, in the Middle Eocene of North America, 

 they developed into the most wonderful monsters that have ever 



Fig. 73. — Uintatherium ingens. 

 Eocene of Wyoming, U.S.A. One-thirtieth nat. size. (B.M. Guide.) 



lived upon the earth — the Dinocerata or '^ terrible-horned " 

 beasts. These had greatly increased in size; they often had 

 large tusks in the upper jaw ; and horns of varied forms and 

 sizes were developed on their heads. The tusks were some- 

 times protected by a bony flange projecting downwards from 

 the lower jaw immediatelv behind it, as well sho^vn in the 

 figure here given of Uintatherium ingens. This animal must 

 have been about 11 feet long and nearly 7 feet high; and if 

 the six protuberances of the skull carried horns like our 

 rhinoceroses, it must, indeed, have been a '' terrible '' beast, 



