No current usage.
(Rocks of †Shubuta Hill clay (informal) (AL) reallocated to Shubuta Member of Yazoo Clay of Jackson Group. See Shubuta.)
early Tertiary (late Eocene)
Notable exposure on Little Stave Creek, Clarke Co., central AL (Smith and others, 1944).
Mid-Gulf Coast 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 ([ ]).