Wilcox Group
Formations: unnamed (87), Black Mingo (3), Dolet Hills (3), Hatchetigbee (5), Hatchetigbee Bluff (72), Indio (32), Marthaville (34), Naborton (10), Nanafalia (18), Nanafalia or Pendleton Ferry (1), Nanafalia or Tuscahoma (1), Nanjemoy (2), Pendleton (1), Pendleton Ferry (31), Rockdale (1), Sabinetown Bluff (10), Seguin (5), Tuscahoma (40)
Lithologies: not reported (110), claystone (20), mudstone (4), "shale" (57), siltstone (41), sandstone (133), conglomerate (8), marl (10), "limestone" (2), lignite (24)
Paleoenvironments: marine indet. (139), terrestrial indet. (27), carbonate indet. (9), shallow subtidal indet. (107), marginal marine indet. (6), coastal indet. (10), delta plain (12), deltaic indet. (44), shoreface (1), transition zone/lower shoreface (1)