Usage:
Gilmore City Limestone (IA* and subsurface of CO*,KS*,MO*,NE*)
Gilmore City Formation (IA)
Gilmore City Formation of Chouteau Group (MO-subsurface)
Subunits:
(alphabetical) --all in IA: Alden Limestone Member, Humboldt Oolite Member, Iowa Falls Dolomite Member.
Geologic age:
Early Mississippian (Kinderhookian)*
Type section, locality, area and/or origin of name:
Exposed in Gilmore Portland Cement Company's quarry, 1.5 mi northwest of Gilmore City, Pocahontas Co., IA (Van Tuyl, 1925; Laudon, 1933).
AAPG geologic province:
Iowa shelf*
Forest City basin*
Salina basin*
Anadarko 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 ([ ]).