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Data sets Publications Expeditions Thesaurus
Carbondale Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Middle Pennsylvanian
 ......Carbondale Formation
RTKentucky
 Illinois
 Herrin Coal Member
 Kewanee Group
 Springfield Coal Member
SNIn Kewanee Group. Illinois and W Kentucky.