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Data sets Publications Expeditions Thesaurus
Manakacha Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Middle Pennsylvanian
 ......Manakacha Formation
RTArizona
 Atokan
 Desmoinesian
SNNW Arizona. Added to Thesaurus in 1985.