THE ARCTOG/EIC REALM. 



[CHAP. 



f ATUL TITUBERCULA TA. 



* Plagiaulacidce. 



* Bolodontidce. Only Secondary in Eastern Arctogsea. 



The following table exhibits some of the better known Tertiary 

 mammalian genera common to both halves of Arctogaea, together 

 with allied types restricted to the western and eastern hemispheres ; 

 such as are still existing being indicated by a f : 



W. HEMISPHERE. BOTH HEMISPHERES. E. HEMISPHERE. 



LEMUROIDEA. 



Anaptomorphus. 

 CARNIVORA. 



Hyopsodus. 



Adapis. 

 Microchoerus. 



(Also 



Machasrodus 

 Neogaea in Plistocene). 



Nimravus. 



Archaelurus. 



Temnocyon. 



Hyaenocyon. 



Daphaenus. 



Eusmilus. 



Claenodon. 

 RODENTIA. 



UNGULATA. 



Achaenodon. 



Homacodon. 

 Procamelus, etc. 



Hyaenodon. 

 Pterodon. 

 Oxysena. 

 Proviverra. 



Chalicomys. 

 Plesiarctomys. 



Elotherium. 

 Ancodus. 



^Elurictis. 



Amphicyon. 



Dinocyon. 



Hyaenarctus. 



Arctocyon. 



Chceropotamus. 



Anthracotherium. 



Dichobunus. 



Caenotherium. 

 t Camelus. 

 f Dorcatherium. 



