BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 

 Vol. 23, pp. 371-376 July 29, 1912 



PROCEEDINGS OF THE PALEONTOLOGICAL SOCIETY 



ORISKANY SANDSTONE OF ONTARIO ^ 



BY CLINTON R. STAUFFER 



{Presented before the Paleontological Society December 28, 1911) 



CONTENTS 



( Page 



Work and conclusions of other investigators MTl 



The exposures in Haldimand County, Ontario .'IT 



~ Sandstone of North Cayuga township ."IT 



Fossils from North Cayuga townshi]) Wl 



Sandstone of Walpole townshii) ;I74 



Fossils from Walpole township '.\") 



Well records ^JTo 



Conclusions 875 



Work and Conclusions of other Investigators 



Few horizons in Ontario are of more geological interest than that of 

 the Oriskany sandstone. This is largely because of its abundance of 

 well preserved fossils and the relation which it bears to the preceding 

 and succeeding formations. Apparently, on the authority of Billings, 

 Logan gives a list of thirty species from the Oriskany sandstone- of 

 North Cayuga township, in which ten are characteristic Oriskany forms, 

 and the remainder are among those usually found in the Onondaga 

 (Corniferous) limestone. About ten years later Nicholson writes, "The 

 fauna of the Oriskany sandstone of Canada is, with very few exceptions, 

 identical with that of the Corniferous (Onondaga) limestone. All the 

 typical and characteristic forms of life in the former pass up into the 

 latter, and it is thus impossible to draw any paleontological line of sepa- 

 ration between them." ^ He says further, "I have myself detected no 

 fossils in the so-called Oriskany sandstone which I have not also recog- 



1 Published by permission of R. W. Brock, Director of the Geological Survey of 

 Canada. 



Manuscript received by the Secretary of the Geological Society of America February 

 28, 1912. 



» Sir William E. Logan : Geologj- of Canada. 1863, pp. 360-361. 



8 H. C. Nicholson : Paleontology of the Province of Ontario, 1874, p. 8. 



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