No current usage.
(†Afton Limestone Member of Wellington Formation of Sumner Group (KS,NE?) considered abandoned.)
early Permian (Leonardian)
Type locality: Afton Twp., in T. 28 S., R. 3 W., Sedgwick Co., southeastern KS (Ver Wiebe, 1937).
Sedgwick 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 ([ ]).