Chinle Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Triassic
 ....Upper Triassic
 .....Chinle Formation
RTNew Mexico
 Utah
 Colorado
 Nevada
 Arizona
 Dockum Group
 Petrified Forest Member
 Shinarump Member
SNIn Dockum Group. N Arizona, SW Colorado, SE Nevada, N New Mexico, S Utah.