342 HISTORICAL PALAEONTOLOGY. 



or less lozenge-shaped, whilst the curvature of the tusks is 

 simple. The Elephas antiquus (fig. 252) is very generally 

 associated with the preceding, and it survived to an even 

 later stage of the Post-Pliocene period. The molar teeth are 

 of the type of the existing Indian Elephant, with compara- 

 tively thin enamel-ridges, placed closer together than in the 

 African type ; whilst the tusks were nearly straight. 



Fig. 251. Molar tooth of Elephaa meridionalia, one-third of the natural size. 

 Pliocene and Post-Pliocene. 



Amongst the Pliocene Carnivores, we meet with true Bears 

 (Ursus Arvernensis) , Hyaenas (such as Hyena Hipparionum}, 

 and genuine Lions (such as the Felis angustus of North 

 America) ; but the most remarkable of the beasts of prey of 

 this period is the great "Sabre-toothed Tiger" (Machairodus), 



Fig. 252. Molar tooth of Elephat antiquua, one-third of the natural size 



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Pliocene and Post-Pliocene. 



species of which existed in the earlier Miocene, and survived 

 to the later Post-Pliocene. In this remarkable form we are 

 presented with perhaps the most highly carnivorous type of 



