Rexroad Formation (KS*,OK*)
Tertiary*
Pliocene, late*
Type section: loc. 5 of Hibbard, in SW/4 sec. 22, T. 33 S., R. 39 W., Meade Co., KS.
Anadarko 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 ([ ]).