Twiggs Clay  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Eocene
 .....upper Eocene
 ......Twiggs Clay
RTGeorgia
 Dry Branch Formation
SNIn Dry Branch Formation. Consists of pale green hackly fuller's earth clay, green hackly clay, gray marl, and calcareous sand at base of member. In E Georgia.