Yazoo Clay  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Eocene
 .....upper Eocene
 ......Yazoo Clay
RTLouisiana
 Mississippi
 Alabama
 Jackson Group
 Shubuta Member
SNIn Jackson Group. Divided into (ascending) North Creek Clay, Cocoa Sand, Pachuta Clay, and Shubuta Clay members. SW Alabama, central N Louisiana and Mississippi.