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Data sets Publications Expeditions Thesaurus
Aux Vases Sandstone  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Mississippian
 .....Upper Mississippian
 ......Chesterian
 .......Aux Vases Sandstone
RTMissouri
 Illinois
 Indiana
 Illinois Basin
SNSW Illinois, S Indiana and E Missouri. Added to Thesaurus in 1989.