Usage:
Gunter Sandstone Member of Gasconade Dolomite (IL*,MO*)
Gunter Sandstone Member of Gasconade Dolomite of Arbuckle Group (subsurface of KS*,OK*)
Gunter Sandstone Member of Oneota Dolomite (IL*)
Gunter Sandstone of Prairie du Chien Group (IL-notably in northern part)
Gunter Sandstone of Knox Group (IL-notably in southern part)
Gunter Sandstone Member of Van Buren Formation (AR*-subsurface)
Geologic age:
earliest Ordovician (Ibexian; Tremadocian; Skullrockian)*
Type section, locality, area and/or origin of name:
Type section: Gunter Spring (Hahatonka Spring, Ha Ha Tonka State Park), in E/2 W/2 sec. 2, T. 37 N., R. 17 W., Camden Co., central MO. Named from abandoned Gunter Post Office, Miller Co., and from Gunter Spring (Thompson, 1991, p. 24; 2001, p. 123).
Type section: at Hahatonka [Gunter or Hahatonka Springs], Camden Co., central MO. Named from abandoned Gunter Post Office, Miller Co. (US geologic names lexicon, USGS Bull. 1200).
AAPG geologic province:
Arkoma basin*
Chautauqua platform*
Cherokee basin*
Forest City basin*
Illinois basin*
Ozark uplift*
Salina basin*
Sedgwick basin*
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 ([ ]).