EARLY DEVONIC HISTORY OF NEW YORK AND EASTERN NORTH AMERICA 7 1 



the broad Robin fishing beach or South cove l)uttressed at the south by 

 horizontal or sHghtly dipping beds of red sandstone and conglomerates 

 rising into a constantly more elevated sea wall till Cape Blanc is reached. 

 Here as one turns the point 

 of the headland and rounds 

 the light, vertical limestone 



strata are once more eXpOSeCl shore section at Cape BUmc. Horizontal Bonaventure conglomerates 

 , . resting on nearly vertical Silnric limestones 



and their contrast ni color to 



the horizontal or slightly northeast dipping red strata which overlie them 

 and abut against their slopes, gives name to the place. The sea wall is 

 sheer and the foot of the cliff accessible with risk, even by water. 



The vertical thickness of these rocks measuring from the point of the 

 cape southward is estimated at 700 to 1000 feet. They are light gray in 

 general effect and the succession of the strata is obscurely presented in the 

 highway and field outcrops. With the slight inclination of the strata 

 away from the vertical toward the south as seen in the Mt Joli massive, we 

 first find in the highway cut ascending the cliff from the north, a red lime- 

 stone, suggesting in tint the Perce rock. On the sea front these red beds 

 are conspicuously shown forming the northern part of the exposure where 

 overlain by the nearly horizontal beds of Bonaventure conglomerate. 

 These beds carry 



Favosites cf. hisingeri E. &^ H. Trochonema 



Halysites catenularius Z////// typicus Bellerophon 



Zaphrentis cf. stokesi E. a^ H. Lichas (fragment) 



Lyellia affinis Billings Trematopora (very slender branches) 



Ortonia Callopora 



Anodontopsis Small Whitfieldella-like brachiopods 



but principally and oftenest a large and heavy shelled pelecypod having a 

 broad cardinal plate extending inward from the hinge line, not attached to 

 the bottom of the valves nor thickened at its junction with the hinge. 

 This rock is of such character that it breaks in almost any direction except 

 along the surface of these fossils ; but one example of this species has the 

 valves together and this, sectioned vertically, shows these projecting plates 



