CENOZOIC TIME — QUATERNARY. 



looa 



The femur was three times as thick as an elephant's ; the clumsy tibia and. 

 fibula were soldered together ; the huge tail was like another hind leg, 

 making a tripod to support the heavy carcass when the animal raised itself 

 against a tree and slowly wielded its great arms ; and the hands terminating 

 the arms were about a yard long, and ended in long claws. The teeth had a 

 grinding surface of triangular ridges, well fitted for powerful mastication. 



A fourth allied genus is Scelidotlierium, of which seven South American 

 species have been made out, — one as large as the Megalonyx, and one smaller 

 than a Tapir. 



Of the armor-clad kinds, the genus Glyjytoclon (Fig. 1563) contained several 

 gigantic species. These animals had a shell something like that of a Turtle. 

 In the G. davipes Owen, 

 the length of the shell, 

 measuring along the 

 curve, was five feet. 



It has been found 

 that in the restoration 

 of this species (Fig. 

 1563) the tail is that of 

 a species of the allied 

 South American genus, 

 Ho2:)lo2')ho7'us. 



The following figure, 

 from a photogravure of the specimen in the La Plata Museum at Buenos 



1563. 



Edentate. — Glyptodon clavipes (x j^j) ; the tail, that of a Hoplophorus. 



1564. 





Edentate. — Dcedicurus clavicaudatus. rrom a photogravure in a paper by Lj'dekker. 



Ayres, published by Lydekker (1894), represents another Pampean species, 

 the club-tailed Glyptodont, Doedicurus clavicaudatus. 



Lydekker states (1894) that " marvelous as are all the Glyptodonts, this 



