Joana Limestone  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Mississippian
 .....Lower Mississippian
 ......Joana Limestone
RTUtah
 Nevada
SNIn White Pine Shale. E Nevada and W Utah. Above Pilot Shale; below Chainman Shale. Added to Thesaurus in 1989.