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Data sets Publications Expeditions Thesaurus
Burlington Limesto  search
Burlington Limestone  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Mississippian
 .....Lower Mississippian
 ......Osagian
 .......Burlington Limestone
RTIowa
 Kentucky
 Missouri
 Illinois
SNFrom Iowa to Kentucky. Added to Thesaurus in 1985.