Usage:
Coker Formation of Tuscaloosa Group (AL*,LA,MS*)
Subunits:
Eoline Member (AL*)
Geologic age:
Late Cretaceous (Cenomanian to Turonian)*
Type section, locality, area and/or origin of name:
Type locality: section on road from Spring Hill School, in secs. 21 and 22, T. 21 S., R. 11 W., 3 mi south of Coker, Tuscaloosa Co., west-central AL (Conant and Monroe, 1945).
AAPG geologic province:
Black Warrior basin*
Mid-Gulf Coast basin*
Arkla basin
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 ([ ]).