ELIZABETHTOWX AXD PORT HEXRY QUADR.\NGLES 



69 



from the contact with the Beekmantown beds, south of Cole bay, 

 along the shore to ]\[ullen bay, and on Crown Point peninsula. 

 Scattered outcrops occur also in the Westport area along the high- 

 way. The section of Crown point has been first described by 

 President Brainerd^ who found a thickness of 305 feet and believed 

 he recognized all three of the Chazy divisions, distinguished in the 

 type section. 



He gives the following section in ascending order; 



1 Sandstone and slate interstratified 



2 Impure limestone containing Orthis platys.. 

 Beds containing iNlaclurites magnus 



1 Dark gray massive limestone, weathering in dark 



stripes an inch wide, containing Bucania sp. und. 



2 Tough, silicious and magnesian rock, passing into 



a two-foot bed of pure sandstone 



25 

 200 



40 

 17 



Aggregate thickness 305 



This section was later on most carefully investigated by Dr 

 Raymond^ who, by means of the fossil evidence, concluded that 

 only the middle division B (which he terms the jNIaclurites 

 magnus division) is present, the Chazy sea reaching so far 

 south only during the hight of the invasion in middle Chazy time. 

 In a later publication^ the following summary of his investigation 

 of the Crown Point section is given : 



Aj,^. Thick beds of slaty shale with occasional bands of hard, 

 fine grained sandstone. Fucoids numerous. 



25 feet 2 inches=rr25 feet 2 inches 

 Lingula brainerdi, a 

 A:,_^, C^. Impure blue limestone, rather thin bedded. 



91 feet 10 inches^ 1 17 feet 



Plaesiomys platys, c 

 Hebertella vulgaris, c 

 Rafinesquina alternata, c 

 R. incrassata, c 

 Zj'gospira acutirostris, r 

 Orthidium lamellosum, r 

 Lingula sp., r 



Concealed 



Camarella longirostris, r 

 C. varians, r 

 Maclurites magnus, r 

 Isotelus harrisi, c 

 Leperditia canadensis, c 

 L. limatula, r 

 Eurychilina latimarginata, r 



34 feet=ri5i feet 



^Gecl. Soc. Am. Bui. 1891. 2:300. 



2 Am. Pal. Bui. 14. 1902. 



3 Carnegie Mus. Ann. 1906. v. 3, no. 



4. P- 551. 



