Canisteo shale member of Perrysburg formation. Proposed for 190 feet of soft bluish-gray to olive-drab shale that overlies Canaseraga sandstone member in Greenwood, Hornell, and Woodhull quadrangles. This is basal part of sequence which according to Bradley (Bradley and Pepper, 1938, USGS Bull. 899-A), was named Gowanda by Chadwick and traced by him from vicinity of Gowanda to vicinity of Canisteo. Absence of definite top of Gowanda member east of Gowanda and presence of thin layers of siltstone and shale at base of Canisteo member and top of Canaseraga between Wiscoy and Hornell indicate that the Canisteo, Caneadea, and Gowanda members, although closely related in time of deposition, are not strictly correlative throughout. Above Canisteo is thick unnamed sequence of silty shale, siltstone, and sandstone; the Canisteo grades upward into this unit, which probably contains upper part of Caneadea member. Age is Late Devonian.
Named from occurrence in vicinity of Canisteo, Steumben Co., western NY.

Source: US geologic names lexicon (USGS Bull. 1200, p. 609).

Pg. 7. The Canaseraga and Canisteo of Pepper and de Witt (1951) = Wiscoy, and therefore are superfluous.

Source: Publication.