Usage:
No current usage.
(†Madisonville Limestone Member of Sturgis Formation (KY) replaced with West Franklin Limestone Member of Shelburn Formation of McLeansboro Group. See West Franklin.)
Geologic age:
latest Middle to earliest Late Pennsylvanian (latest Moscovian to earliest Kasimovian; latest Westphalian D to earliest Stephanian A; latest Desmoinesian to earliest Missourian)
Type section, locality, area and/or origin of name:
Madisonville, Hopkins Co., western KY (Norwood, 1878).
AAPG geologic province:
Illinois 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 ([ ]).