Hay Hollow Sandstone Lentil of Tallant Formation of Ochelata Group (OK*)
Pennsylvanian*
Not designated. Named from occurrence in upper part of Hay Hollow, in secs. 25 and 36, T. 28 N., R. 11 E., Washington Co., OK (Goldman and Robinson, 1922).
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 ([ ]).