146 



Report of the State Geologist. 



XXXV B\ Q uarry three miles northwest of Norwich, in the south- 

 eastern corner of Plymouth, and on the western side of the Oanasawacta creek 

 above the former DeRuyter branch of the New York, Ontario and Western 

 railroad. This quarry is in the Ithaca formation and is between ninety and 

 one hundred feet higher than the Norwich railroad station. About twenty 

 feet of blue sandstone and shales are exposed. Fossils are common in the 

 lower layers, but few were seen in the upper part of the quarry. Tropi- 

 doleptms carinatm (Con.), Hall; Spiv if er mucronatus (Con.), Bill.; Lio- 

 rhynckus mesacostalis, Hall; ProdueteUa, sp. ; Palceoneilo, sp.. and some 

 other species are common. A church in Norwich was built of stone from this 

 quarry. 



XXXV D\ The lowest rocks in Ransford creek, about one and one- 

 quarter miles northeast of Norwich and some forty feet above the railroad 

 station, consist of thin blue sandstones and shales. IAoi^uynchus mesacostalis, 

 Hall, and Spirifer mucr&ntitus (Con.), Bill., are abundant. A little farther 

 up the creek is a quarry in blue sandstone alternating with shales. There is 

 no flagging, and the stone is used for building purposes only. Fossils are 

 quite common, Tropidoleptus carinatus (Con.), Hall, and Productella, sp., are 

 most abundant. One good specimen of Cimitaria recurva (Con.), Hall, 

 was found. 



XXXV D'. On Ransford creek, two miles northeast of Norwich, is the 

 reservoir, the top of the dam being 160 feet above the railroad station, or 

 1,160 feet A. T. In the creek, just below the dam, are shales and sandstones 

 which in places contain abundant fossils, especially iA^rhynchms mesacostalis, 

 Hall; Paracyclas lirata (Con.), Hall; Spirifer, sp., and JHiynchoneUa, sp. 

 Above this locality, at about the same level as the dam, is a quarry that was 

 opened when the reservoir was built. The rocks are blue shales and sand- 

 stones in which fossils are common, Chonetes and Spi/rifer being the most 

 numerous. These exposures described along Ransford creek are in the 

 strongly fossiliferous portion of the Ithaca formation. 



All the recent writers in describing the geology of the Norwich region 

 have noted the great similarity between the fauna of the Ithaca, as exposed 

 in the Chenango valley, and that of the Hamilton formation. Professor H. S. 

 Williams, in 1886, stated that "the fauna A 1 [ which he called the Paraeyclas 

 lirata stage of the Hamilton faunas occurring above the horizon of the 

 Gene-ee shale |, underlying the greys which initiate and terminate the reds 

 [tin- Oneonta formation | was composed of Hamilton species w ith scarcely any 



