Usage:
Tuscaloosa Formation (AL*,AR,FL*,GA*,IL,KY*,LA*,MS*,TN*)
Tuscaloosa Group (AL*,LA,MS*)
Tuscaloosa Gravel (TN*)
"Tuscaloosa Formation" of Oconee Group (GA)
Subunits:
GROUP STATUS (alphabetical): Coker Formation (AL*,MS*), Eagle Ford Formation (LA-local), Gordo Formation (AL*,GA*,MS*), Pepper Shale (LA-local).
Geologic age:
Late Cretaceous*
Type section, locality, area and/or origin of name:
Named from Tuscaloosa, Tuscaloosa Co., AL, and Tuscaloosa (Black Warrior) River at Steele's Bluff and White's Bluff, Hale Co., AL (Smith and Johnson,1887).
AAPG geologic province:
Black Warrior basin*
Mid-Gulf Coast basin*
Gulf Coast basin*
South Georgia sedimentary province*
Florida platform*
Upper Mississippi embayment*
Illinois 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 ([ ]).