EARLY DEVONIC HISTORY OF NEW YORK AND EASTERN NORTH AMERICA 



11 



Stone which Logan refers to the upper part of his no. 7 is conspicuous at 

 Shiphead, part way down the dechvity to the coulee. This coulee at 

 Shiphead, from the reading of Logan's description given above where 

 he states that the 

 summit beds of 

 no. 6 slope down 

 into a valley 

 which divides the 

 hills of the prom- 

 ontory into a 

 double range, 



would appear to 

 have been as- 

 sumed as the 

 dividing line be- 

 tween 6 and 7. 

 This division line 



seems to us quite conventional and the lower beds of the Grande Greve 

 formation with C h o n e t e s canadensis and other characteristic species 

 of this formation rise beyond the coulee eastward into the summit beds of 

 the ridge forming Cape Gaspe. The Cape Bon Ami beds afford only ver- 

 tical exposures in sheer cliffs facing the sea, their landward slopes being both 

 heavily wooded and covered by overlying beds ; hence we know but few 

 fossils from them. Billings spoke of them as passage beds, yet they are 

 fully 1000 feet thick and will sometime produce more complete evidence 

 of the life of this period. 



Fauna of the Cape Bon Ami beds 



Logan's lists again cite species which are unknown to us from these 



beds and as these identifications have not been verified in Billings's later 



description of the fauna we can not safely take account of them. Thus 



Leptocoelia flabellites is cited from divisions 4 and 5 but no 



'The Quay," Cape Rosier cove 



