196 
THE TERTIARY AGE, AND 
moral strength became the dominant influences 
on earth. 
Among these huge Tertiary Mammalia, one of 
those most common on the North-American con- 
tinent seems to have been the Mastodon. The 
magnificent specimens preserved in this country 
are too well known to require description. The 
remains of the Rhinoceros occur also in the re- 
cent Tertiary deposits of North America, though 
as yet no perfect skeletons have been found. The 
Edentata, now confined to South America and the 
western coast of Africa, were also numerous in the 
Southern States during that time ; their remains 
have been found as far north as the Salt Lick in 
Kentucky. But we must not judge of the Ter- 
tiary Edentata by any now known to us. The 
Sloths, the Armadillos, the Ant-Eaters, the Pan- 
golins, are all animals of 
rather small size ; but for- 
merly they were repre- 
sented by the gigantic 
Megatherium, the Mega- 
lonyx, and the Mylodon, 
some of which were lar- 
ger than the Elephant, 
and others about the size 
of the Rhinoceros or Hip- 
popotamus. The sub- 
joined wood-cut represents a Mylodon in the act 
Mylodon. 
