Usage:
Bainbridge Limestone (IL*,MO*)
Bainbridge Formation (IL*,MO*)
Bainbridge Group (IN)
Subunits:
FORMATION STATUS (alphabetical) --all in MO*: Moccasin Springs Member, St. Clair Limestone Member, Seventy-Six Shale Member.
GROUP STATUS (alphabetical) --all in IN: Bailey Limestone, Moccasin Springs Formation, St. Clair Limestone.
Geologic age:
Silurian (late Llandovery to Pridoli)*
Type section, locality, area and/or origin of name:
Named from Bainbridge, Cape Girardeau Co., eastern MO (US geologic names lexicon, USGS Bull. 896).
Type section: along Bainbridge Creek, near Moccasin Springs, in head of small box canyon, in SE/4 SE/4 NW/4 sec. 24, T. 32 N., R. 14 E., Cape Girardeau Co., eastern MO (Ball, 1939).
AAPG geologic province:
Illinois basin*
Ozark uplift*
Upper Mississippi embayment*
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 ([ ]).