Prosser — Hamilton and Chemung Series. 



143 



lirata (Con.), Hall; Chonetes scitula, Hall ; At/rypa reticularis (Lin.), Dalra.; 

 Palaeoneilo maxima (Con.), Hall; and Sgirifer, sp. The top of this quarry is 

 208 feet above the creek level, which brings it in an approximate horizon 

 with stations B and B 1} described by Clarke, 1 who gave a list of nineteen 

 species. For about eighteen feet the rocks are covered and then arenaceous 

 and rather smooth shales that weather to a greenish tint are exposed by the 

 roadside. The base of these shales is 226 feet above the creek and they show 

 a thickness of nineteen feet on the road. At 239 feet above the creek in thin 

 blocky shales a few fossils were found, Paracyclas lirata (Con.), Hall, and 

 Mitfrodon (Cypricardella) bellistriatus (Con.), Hall. In a thin sandstone layer 

 are plenty of crinoid segments. These were the last fossils noted until the 

 red and grey rocks were reached above at an elevation of 491 feet. 



XXXV A z is used to designate the shales and rather coarse sandstones 

 after fossils become very rare. At 277 feet above the creek are very tine, 

 smooth and micaceous shales that break up into small pieces about an inch 

 square. At 386 feet rather coarse-grained sandstones begin to appear. 



XXXV A*. These coarse sandstones with a little shale continue to an 

 elevation of 426 feet where a stratum of concretionary coarse-grained sand- 

 stone weathering to a greenish tint, crosses the road, below which are thin 

 shales without fossils. Fifty feet higher a prominent, coarse-grained grey 

 sandstone crosses the road. 



XXXV A 5 . At 491 feet above the creek level is the first outcrop of 

 red argillaceous shale, below which is fissile, argillaceous, olive shale. About 

 three feet above the base of the red shale is a slightly calcareous layer that 

 contains clay pebbles with flat, black fish scales and fragments of fish bones. 

 The red shales were not noticed on the road section above 517 feet. It is 

 interesting to note that Clarke described an outcrop of " about three feet of 

 soft red and green sandy shales with minute fish bones and entomostraca " on 

 the Norwich-Preston road about one mile northwest of this locality. 3 The 

 altitude of this red shale above the river level is, according to Clarke, 495 feet. 

 This agrees very closely with that of the fossiliferous red shale described by 

 the writer at an altitude of 491 feet above the level of Canasawacta creek, 

 which can differ but slightly from the river level at this locality. 



XXXV A . Near the brow of the hill is the CrandaU quarry, no longer 

 worked, the top of which is 551 feet above the creek level, or approximately 

 1,536 feet A. T. The rock is a coarse-grained, greenish-grey sandstone, w hose 



1 Thirteenth Annual Report State Geologist [New York], pp. 534 and 535. 

 * Ibirl.. p. 536. 



