Maryland Geological Survey 



97 



This interpretation seems to accord fully with the results given 

 by Kindle elsewhere in this volume ' and at the same time to explain the 

 manifestly close faunal relationship of this member to the Marcellus of 

 New York. 



The propriety of applying the name Onondaga may be questioned. The 

 lithological and faunal differences that separate the beds from the over- 

 lying Marcellus make it desirable to discriminate them by a distinctive 

 term. In view of the marked contrast between them and the Onondaga 

 limestone of New York, both in lithology and fauna, it is believed that 

 it might have been fitting to give them a new name. They are, however. 



NEW YORK 



AFARYLAND 



Fig. 1. — Diagram showing suggested relations between the Upper Devonian 

 of Maryland and New York. 



called the Onondaga member of the Eomney in deference to the usage of 

 the TJ. S. Geological Survey. 



Marcellus Member." 



The Marcellus member of the Eomney formation has a very meager 

 fauna, most of the strata being barren of organic remains. The species 

 found, however, clearly show that it is to be correlated with part of the 

 Marcellus of New York. The table on the following page gives a list of the 

 species and indicates their range in the New York section. 



One of these species is new. All of the remaining occur in the Mar- 

 cellus of New York. Four species are found also in the Hamilton of 

 New York while three pass into the Upper Devonian. Two species, 



' See also Bull. U. S. Geol. Survey. No. 508, 1912. 

 = Contributed by Charles K. Swartz. 



