Usage:
Wanakah Formation (NY)
Wanakah Shale Member of Ludlowville Formation (NY*)
Subunits:
/Darien Center Submember (NY), /Spring Brook Submember (NY), /Eighteen Mile Creek Submember (NY).
["Submember" not recognized as a formal stratigraphic rank term (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983). Considered informal and should not be capitalized.]
Geologic age:
Middle Devonian*
Type section, locality, area and/or origin of name:
Type section: exposures in Wanakah and Lakewood Beach Cliffs along Lake Erie, western NY (Cooper, 1930).
AAPG geologic province:
Appalachian basin*
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).