NO. 1814 NETTKLROTH FOSSIL COLLECTION — BASSLLR 



127 



Section of Strata, Louisville, Kentucky, and Vicinity 



Sandstone and shale. 



Knobstone sandstone and shale 



Upper cherty bed 



Middle [ Hydraulic limestone. ... Hamilton (Silver Creek) 



Lower 



Spirifer acuminatus bed. 



Bryozoan bed. 



Nucleocrinus bed 



Stropheodonta bed. 



(-Onondaga (Jeffersonvillej 



The following generalized section of the Paleozoic rocks in the 

 vicinity of Louisville, Kentucky, is introduced to show the stratigra- 

 phy of the region as now understood, and also to indicate the faunas 

 chiefly represented in the Nettelroth collection. Indeed, the faunas 

 of the rocks concerned are so well represented that this entire por- 

 tion of the collection was assigned to the general stratigraphic series 



