Clarke — The Naples Fauna. 



41 



The following is, with our present knowledge, a proper expression of tlie 

 time and faunal relations of the Portage sediments of western New York : 



West 



Genesee river section 



CO 





^< 

 W 





W. 



Wiscoy beds 







fa-H 

















W 



Portage sandstones 



















c 





r— \ 





i— i 





H W 

 £C 



(rflrflpan ^linlp^ and flacrs 



















% 







Cashaqna sliales 







w 





Ph 





■VI 

 rH 



c 



Upper Genesee 





Prennncial or Styliola fauna 



Lower Genesee 



< 



> — , 



< 



w 



p— I 

 I— i 



D 



a; < 



i— ( 



H 



c 



East 



Naples section 



Portage sandstones 



Gardeau shales and flags 



Cashaqua shales 



Upper Genesee 



Stvliola fauna 



Lower Genesee 



