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Data sets Publications Expeditions Thesaurus
Madera Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Madera Formation
RTNew Mexico
 Colorado
 Magdalena Group
 Wild Cow Formation
SNIn Magdalena Group. N and central New Mexico and S Colorado. Added to Thesaurus in 1989.