Usage:
Cuyahoga Formation (NY*,OH*,PA*,WV*)
Cuyahoga Group (OH*,PA*)
Subunits:
GROUP STATUS (alphabetical) --all in OH*,PA*: Meadville Shale, Orangeville Shale, Sharpsville Sandstone.
FORMATION STATUS (alphabetical): Armstrong Sandstone Member (OH), Black Hand Sandstone Member (OH*) or Black Hand Member (OH*), Buena Vista Sandstone Member (OH*) or Buena Vista Member (OH*), Burbank Member (OH-local), Churn Creek Member (OH), Fairfield Member (OH), Lithopolis Siltstone Member (OH-local), Meadville Shale Member (OH,PA), Orangeville Shale Member (OH,PA), Pleasant Valley Member (OH), Raccoon Shale Member (OH), Rarden Shale Member (OH), Rittman Conglomerate Lentil (OH) or Rittman Member (OH), Sharpsville Sandstone Member (OH,PA), Shaws Sandstone Member (PA), Strongsville Member (OH), Vanceburg Sandstone Member (OH), West Mead Limestone Member (PA), Wooster Shale Member (OH).
Geologic age:
Early Mississippian (Tournaisian; Kinderhookian to early Osagean)*
Type section, locality, area and/or origin of name:
Named from exposures along Cuyahoga River, between Akron and Cleveland, northeastern OH (Newberry, 1870).
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 ([ ]).