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Springer Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Springer Formation
RTMississippian
 Pennsylvanian
 Oklahoma
 Chesterian
 Morrowan
SNChester and Morrow Series. Conformably overlies Goddard Shale. Central S Oklahoma.