Mary Lee Coal  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Mary Lee Coal
RTAlabama
 Black Warrior Basin
 Pottsville Group
SNPennsylvanian. Black Warrior Basin, Alabama. In Pottsville Group. Added to Thesaurus in 1993.