BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 

 Vol. 2, pp. 31-48, PL. I January 8, I89i 



THE CUYAHOGA SHALE AND THE PROBLEM OF THE 

 OHIO WAVERLY. 



BY C. L. HERRICK. 



[Read before the Society August 19, 1890.) 



CONTENTS. 



Page. 



Introduction 31 



The General Stratigraphy 33 



The Bedford Shale 33 



The Berea Grit 35 



The Berea Shale 35 



The Cuyahoga Shale 35 



The Waverly Shale 37 



The Kinderhook 38 



The Burlington and Keokuk 38 



Summary 38 



Representative Sections „ 39 



The Fauna of the Cuyahoga Shale 41 



Notes on New and Little-Known Waverly Fossils 42 



Introduction. 



It is not my purpose to enter into a discussion of the opinions which have 

 from time to time been advanced with reference to the age and homologies 

 of the so-called Waverly formation of Ohio. This has been done in extenso 

 by A. Wincheir-^ and by Newberry and Orton in the various reports of the 

 Ohio Geological Survey. 



Neither is it necessary to repeat in detail the reasons for regarding the 

 Waverly as a highly composite (and hence unnatural) rather than a simple 

 element in the series, for it is hoped that the paleontological and strati- 

 graphical evidence presented in the papers published in the Bulletin of 

 Denison University, the American Geologist and elscAvhere by the writer 

 and his associates during the last few years may serve to sufficiently demon- 

 strate this. The study has been so prolonged and minute that its results 



*Proc. American Philosophical Society, vol. XI, 1870. pp. 385-416. 

 V— Bull. Geol. Soc. Am., Vol. 2, 1890. (31) 



