ORDER II 



MAESUPIALIA 



35 



CladosicUs Ameghino (Fig. 55). a /. M'^~^ with strong protocone. if* 

 strongly reduced. Lower M with rather stout talonid. P gradually- 

 increasing in size. Skull with alisphenoid bulla. Hallux reduced. 



B 



Pig. 55. 



CladosicUs lustratus Ameghino. Upper Miocene of Santa Cruz, Patagonia. ^, Hand. /?, Foot. 



i/i. (After Sinclair.) 



Humerus with entepicondylar foramen. Claws pointed, compressed. Miocene ; 

 Santa Cruz. 



Hathlyac'ijnus Mercerat. Same locality and horizon. Prodadosictis, 

 Psevdodadosidis Ameghino. Eocene. Notostylops beds. 



Amphiproviverra (Protoproviverra) Ameghino (Fig. 56). -| /. Upper M 



Fig. 56. 



Amphiproviverra mamaniana Ameghino. Upper Miocene 

 of Santa Cruz. A, Upper dentition. B, Lower dentition, 

 i/i. (After Sinclair.) 



Fig. 67. 



Borhyaena tuberculata Ameghijio. Skull. 

 1/5. Upper Miocene of Santa Cruz, Pata- 

 gonia. (After Ameghino.) 



with three strong cusps and short metastyle. M* slightly reduced. Lower P 

 and M slender, M with large, hollowed-out talonid. Hallux large, opposable. 

 Humerus without foramen. Claws pointed. Miocene ; Santa Cruz. 



Perathereutes, Sipalocyon, Agnstylus, Acyon, Idioborus Ameghino. Miocene ; 

 Santa Cruz. 



