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Moenkopi Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Triassic
 ....Moenkopi Formation
RTUtah
 Colorado
 California
 Nevada
 Arizona
SNLower and middle (?) Triassic or Triassic (?). In SW Utah, subdivided into (ascending) Timpoweap, Lower Red, Virgin Limestone, Middle Red, Shnabkaib, and Upper Red members. Arizona, California, Colorado, Nevada, and S Utah.