Usage:
Seminole Formation of Skiatook Group (OK*)
Seminole Sandstone Member of Coffeyville Formation of Skiatook Group (OK)
Seminole Formation of Pleasanton Group (KS,MO)
Subunits:
Hepler Sandstone Member, South Mound Shale Member (Jewett and others, 1965, in KS).
Geologic age:
Late Pennsylvanian (Missourian)*
Type section, locality, area and/or origin of name:
Named from the Seminole [Indian] Nation, OK, the typical area being in the northwest corner of Coalgate quadrangle, near edge of Seminole [Indian] Nation, Hughes Co., OK (US geologic names lexicon, USGS Bull. 896).
Type locality: southeast part of Seminole [Indian] Nation, now Seminole Co. (probably T. 6 N., R. 7 and 8 E.) (Oakes, 1940).
AAPG geologic province:
Chautauqua platform*
Forest City basin*
Arkoma 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 ([ ]).