WORLD CORRELATION AND DISTRIBUTION 



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Upper Cretaceous mammals are known only from North America, Asia, and pos- 

 sibly South America. They provide no real comparisons between these continents and 

 no opportunity for precise correlation. The known genera and approximate correlation 

 of the Triassic and Jurassic mammalian faunas are summed up in the following table: 



North America Europe 



LATEST Ctenacodon Ctenacodon 



JURASSIC Psalodon 



Plagiaulax 

 Bolodon 



Phascolodon 

 Aflocofwdon 

 Tr'toracodon - 

 Priacodon 



Tinodon 



Antfliidon 

 Eurylambda 



Paurodon 



A rchaeotrigon 



T athiodon 



Dryolestes 



Laolestes 



A mblotheriufn 



Kefolestes 



Herfetairus 



Melaiwdon 



Euthlastus 



Miccylotyrans 



Mallhacolestes 



Pelicofsis 



Docodon 



-Trioracodon 

 Triconodon 



Sfalacotherium 

 Peralestes 



Peramus 



-A mblotheriuni 



Perasfalax 

 Phascolestes 



Kurtodon 

 Peraiocynodon 



Africa 



Brancatherulum 



