Brallier Shale  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Devonian
 ....Upper Devonian
 .....Brallier Shale
RTVirginia
 Pennsylvania
 West Virginia
SNIn Susquehanna Group. Central Pennsylvania, Virginia and West Virginia. Added to Thesaurus in 1985.