6i6 NORTH AMERICAN INDEX FOSSILS. 



Saluda beds. 

 Liberty beds. 

 Waynesville beds. 



Blanchester division. 



Clarksville division. 



Fort Ancient division. 

 Arnheim beds. 



Maysville (= Lorraine shales). 

 Mount Auburn beds. 

 Corryville beds. 

 Bellevue beds. 

 Fairmount beds. 

 Mount Hope beds. 



Eden (= Frankfort shales). 



McMicken or Paint Lick beds. 

 Southgate beds. 

 Economy beds. 



Fulton (Upper Utica in part). 



Cynthiana (Utica-Trenton). 



Nicholas beds. 

 Greendale beds. 

 Perryville beds. 



Upper Mohawkian. 



Lexington (Trenton?). 



Paris beds. 

 Wilmore beds. 

 Logana beds. 

 Curdsville beds. 

 (Base not exposed.) 



In the Nashville region of Tennessee, a part of these beds 

 (Utica-Trenton) is designated the Nashville group, beneath which 

 the following Middle Ordovicic beds occur: 



Upper Ordovicic. 



Nashville group 475 ft. 



