Usage:
Sumner Group (KS*,NE,OK, and CO*-subsurface)
Subunits:
(alphabetical): Buckeye Shale (KS), Donegal Limestone (KS), Garber Sandstone (OK), Ninnescah Shale (KS*), Nolans Limestone (KS), Odell Shale (KS), Stone Corral Formation (KS*), Wellington Formation (KS*).
[According to GNU records (USGS DDS-6; Denver GNULEX), Sumner divided into Wellington Formation (base), Ninnescah Shale, and Stone Corral Formation in KS (references not given).]
Geologic age:
early Permian (Leonardian)*
Type section, locality, area and/or origin of name:
Not designated. Named from Sumner Co., KS (Cragin, 1896).
AAPG geologic province:
Anadarko basin*
Sedgwick basin*
Nemaha anticline
Salina basin
Chautauqua platform
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 ([ ]).