Skiatook Group (OK*,TX)
(alphabetical): Checkerboard Limestone (OK*), Coffeyville Formation (OK*), Dewey Limestone (OK*), Hogshooter Limestone (OK*), [?]Kansas City Formation (TX), Nellie Bly Formation (OK*), Seminole Formation (OK*).
Late Pennsylvanian (Missourian)
Not designated. Named from the town of Skiatook, Tulsa Co., OK (Ohern, 1910).
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 ([ ]).