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BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Eocene
 .....upper Eocene
 ......Jackson Group
RTSouth Carolina
 Louisiana
 Mississippi
 Texas
 Alabama
 Florida
 Georgia
 Barnwell Formation
 Manning Formation
 Moodys Branch Formation
 Whitsett Formation
 Yazoo Clay
SNIncludes Caddell (Moodys Marl) Formation, Wellborn Formation, Manning Formation, and Whitsett Formation, Gosport Sand, Yazoo Clay, Ocata Limestone, Barnwell Formation, McElroy Formation, Mosley Hill Formation. Gulf Coastal Plain from South Carolina to S T