THE EOCENE PERIOD 



803 



horns near the extremity of the nose, as were their kin the rhinoc- 

 eroses, but placed transversely, as in the ox (Fig. 539). They 

 reached some fourteen feet in length and ten in height. They were 

 American arid apparently rather local. Another odd type were 

 the elotheres, which appeared in North America in the White River 



I Fig. 540. An interpretation of the general appearance of the elotheres, 

 or giant pigs, of the White River epoch, drawn by Charles R. Knight 

 under suggestions from Osborn and Scott, based on a skeleton in the 

 Princeton Museum. (From drawing in American Museum of Natural 

 History. Copyrighted by the Museum.) 



ptage, and continued into the Miocene. An interpretation of their 



jgeneral appearance is shown in Fig. 540. 



Artiodactyls were prominent, represented by various extinct 



forms, and by ancestral peccaries, camels, ruminants, and the 



singularly specialized horned and tusked Protoceras. Proto- 

 3eras was remotely related to the deer family, and was profusely 

 ind strangely horned, as though in diminutive mimicry of the 



