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Data sets Publications Expeditions Thesaurus
Swan Hills Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Devonian
 ....Swan Hills Formation
RTMiddle Devonian
 Upper Devonian
 Alberta
 Saskatchewan
 Beaverhill Lake Group
 Northwest Territories
SNMiddle-Upper Devonian. Alberta, Northwest Territories, and Saskatchewan. Petroleum-bearing layer. Indexed with ages as applicable. Added to Thesaurus in 1993.