THE EOCENE OF EUROPE AND NORTH AMERICA 



131 



Carnivores truly the closing chapter of the Lower Eocene, because 

 Oodectes there is remarkably little extinction, there Ijcing 

 Patriofelis rather a numerical diminution of the mammals so 

 Limnocyon highly characteristic of the Lower Eocene. In all, 

 Tritemnodon the Wind River possesses twenty-five genera in corn- 

 Edentates mon with the Wasatch. It possesses eleven Wasatch 

 Stylinodon species. It is doubtful whether a single family of 

 mammals becomes extinct. 



Lambdo- 



Lambdotherium 

 £o titan ops 

 Coryphodon 

 Bathyopsis 

 Phenacodus 

 ► therium Meniscotherium 



zone r- ,- 



tqn/ppus 



Heptodon 



Hyrachyus 



Pelycodus 



Notharctus 



Patn'ofe/is 



Est h onyx 



By permission of the American Museum of Natural History. 



Fig. 43. — Section of the Tertiary deposits of the Beaver Divide in the Wind River Basin, 

 Wyoming. After Granger, 1910. 



