Windom Shale (PA)
Windom Member of Moscow Shale (NY*,PA)
Windom Shale Member of Moscow Formation (NY*)
Several informal beds (see Brett and Baird, 1994, for complete list)
late Middle Devonian (Givetian)*
Exposures along Smoke Creek, near Windom, Erie Co., NY (Grabau, 1930).
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 ([ ]).