Usage:
Mitchellsville Limestone Bed of Tradewater Formation of Raccoon Creek Group (IL-local)
Geologic age:
Middle Pennsylvanian (Desmoinesian)
Type section, locality, area and/or origin of name:
Type section: north-trending ravine in SW/4 NW/4 NW/4 sec. 27, T. 10 S., R. 6 E., Harrisburg quadrangle, Saline Co., southern IL. Named from village of Mitchellsville, about 6 mi south of Harrisburg (Nelson and others, 1991).
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 ([ ]).