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Wild Cow Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...upper Paleozoic
 ....Wild Cow Formation
RTLower Permian
 New Mexico
 Upper Pennsylvanian
 Madera Formation
 Pine Shadow Member
SNUpper Pennsylvanian and Lower Permian. In Madera Formation. New Mexico. Indexed with age as applicable. Added to Thesaurus in 1995.