RHINOCEROS 



111 



position in the rock, show how these specimens are sometimes 

 Giant Pigs found and raise questions as to how they got there, more 

 and Pigmy easily asked than answered. The giant pigs, or elotheres, 

 Hippopotamus jj^^d ^j^p pygmy hippopotamus will repay examination. 

 The primitive rhinoceros-like animals are shown near the center of 

 the hall on the right. It seems hard to believe that our 

 vast western country and indeed all North America was 

 once the home of the rhinoceros. As here indicated great herds roamed 

 over the fields in the Tertiarv Period and their fossil remains are found 



Rhinoceros 



Restoration of Brontosaunis. One of the largest of the amphibious dinosaurs, cold-blooded, slow- 

 moving, unintelligent creatures that grew to large size (6.5 ft. in length) in the rich vegetation of the 

 Reptilian era. 



imbedded in the sandstones and clays of the badland formations. Oppo- 

 site these are shown the ancestors of the dogs, cats and other carnivores 

 and the Creodonts or Primitive Carnivores of the early Tertiary. Next 

 to these are the small mammals — the insectivores, rodents and marsu- 

 pials; and the fossil lemurs and monkeys, fragmentary but interesting 

 because of their bearing on the ancestry of man. 



On the south side on the right are skeletons of titanotheres, on the 

 left of uintatheres, huge extinct, horned animals peculiar to North 

 America. 



