Cuyahoga Formation (OH*,PA,WV)
Cuyahoga Formation of Pocono Group (NY*,PA*)
Cuyahoga Group (OH*,PA*)
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), Buena Vista Sandstone Member (OH*) or Buena Vista Member (OH*), Burbank Member (OH-local), Churn Creek Member (OH), Fairfield Member (OH), Henley Shale Member (OH), Lithopolis Siltstone Member (OH), Meadville Shale Member (OH,PA), Orangeville Shale Member (OH,PA), Pleasant Valley Member (OH), Portsmouth Shale 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).
Early Mississippian (Tournaisian; Kinderhookian to Osagean)*
Named from exposures along Cuyahoga River, between Akron and Cleveland, northeastern OH (Newberry, 1870).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.
"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).