Labette Shale  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Middle Pennsylvanian
 ......Desmoinesian
 .......Labette Shale
RTIowa
 Missouri
 Oklahoma
 Kansas
 Marmaton Group
SNIn Marmaton Group.