Tensleep Sandstone  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Tensleep Sandstone
RTPennsylvanian
 Lower Permian
 Wyoming
 Montana
SNIn Montchauve Group. Pennsylvanian and Lower Permian. Overlies Amsden Formation. Indexed with ages as applicable.