Lakota Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Lower Cretaceous
 .....Lakota Formation
RTWyoming
 Montana
 Nebraska
 South Dakota
 Inyan Kara Group
SNIn Inyan Kara Group. Montana, W South Dakota, NE Nebraska and E Wyoming. Added to Thesaurus in 1985.