Usage:
Bedford Shale (KY*,MI*,OH*,PA*,TN*,VA*,WV*)
Bedford Formation (OH*,WV*,MI*)
Bedford Shale Member of Chattanooga Shale (KY)
Geologic age:
Late Devonian (Famennian)*
Type section, locality, area and/or origin of name:
Type locality: near Bedford, along Tinkers Creek on east side of Cuyahoga River opp. town of Independence, Bedford Twp., [Cleveland 15-min quadrangle], Cuyahoga Co., eastern OH (de Witt, 1951; Pepper and others, 1954; see Newberry, 1870).
Named from Bedford, [Cleveland 15-min quadrangle], Cuyahoga Co., eastern OH (US geologic names lexicon, USGS Bull. 896).
AAPG geologic province:
Appalachian basin*
Michigan 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 ([ ]).