Cuyahoga and Knapp Formations

Cuyahoga Formation - shale, sandstone; Corry Sandstone; Knapp Formation - shale, conglomerate 60-100 ft. (20-30 m).
State New York
Name Cuyahoga and Knapp Formations
Geologic age Lower Mississippian
Lithologic constituents
Sedimentary > Clastic > Mudstone > Shale
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Conglomerate
Comments part of Pocono Group. Age changed to Upper Devonian to Lower Mississippian as per USGS Lexicon website (ref. NY046) and reference NY012.

Fisher, D.W., Isachsen, Y.W., and Rickard, L.V., 1970, Geologic Map of New York State, consisting of 5 sheets: Niagara, Finger Lakes, Hudson-Mohawk, Adirondack, and Lower Hudson, New York State Museum and Science Service, Map and Chart Series No. 15, scale 1:250,000.

Feldmann, R.M., Hannibal, J.T., Mullett, D.J. and and others, 1992, The paleoecology of 'Echinocaris randallii' Beecher from Drake well, Titusville, Pennsylvania, IN Erickson, J.M., and Hoganson, J.W., eds., Proceedings of the F.D. Holland, Jr., geological symposium: North Dakota Geological Survey Miscellaneous Series, no. 76, p. 127-147.

USGS Geologic Names lexicon found at:

NGMDB product
Counties Cattaraugus - Chautauqua