CLASSIFICATION OF VERTE&RATA 41 



Viprotodontidae. Diprotodon, Nototherium. Plistocene, 

 Australia. 



Macropodidae. Macropus . Hypsipiymnua Australia. 



Macropristis. Plistocene, Patagonia 



Thylacoleontidae. Thylacoleo. Plistocene, Australia. 



1'hascolomyidae. P hascolom ys. Since the Plistocene in 

 Australia. 



3. Sub-CLASS EUTHERIA, Huxley, s. MoNODBLPHli 

 de Blainville, & Placbntalia, Owen 



Viviparous, with chorion and placenta. Without marsu- 

 )ium, and without marsupial bones. 



Coracoids reduced to the " coracoid process " of the 

 japula. 



Males at least without cloaca ; perineum separating the 

 lal and urogenital orifices. 



1. Order Edentata (Vicq. d'Azyr), Cuvier, Terrestrial. 

 )entition reduced to molars without enamel, or lost com- 

 jletely. 



Probably a heterogeneous assembly. 



1. Sub-order NOMARTHRA, Gill. With normal verte- 

 >ral zygapophyses. Restricted to the Old World. 



Orycteropodidae. Orycteropus, now Ethiopian ; upper 

 iocene of Samos. 



Manidae. Manis. Palaeotropical ; in India since the 

 )Ugocene. 



2. Sub -order XENARTHRA, Gill. Zygapophyses with 

 idditional articular facets. American, since the Oligocene. 



Bradypodidae. B radypus , Choloepus. Central and South 

 lerica. 

 Megatheriidae. Extinct, Tertiary. 

 Moropus. Miocene, North America. 

 Morotherium. Lower Pliocene, North America. 

 Mylodon, Scelidotherium. Plistocene of South America. 

 Megatherium. Plistocene, America, etc. 

 Myrmecophagidae. Myrmecophaga, Cycloturus. Neo- 

 tropical. 



