Narrower Terms (41)

• Arroyo Formation (Tex.)
• Barfield Formation (Qld.)
• Beaufort Group (South Africa)
• Bowie Group (Tex.)
• Brushy Canyon Formation (N.M. and Tex.)
• Capitan Formation (N.M. and Tex.)
• Coconino Sandstone (Ariz.)
• ▶ Collingham Formation (South Africa)
• Cutler Formation
• Cutler Group
• Dunkard Group
• Ecca Group
• Flaminkberg Formation (South Africa)
• ▶ Geology, Stratigraphic--Permo-Carboniferous
• Glorieta Sandstone (N.M.)
• Grayburg Formation (N.M. and Tex.)
• Ingelara Formation (Qld.)
• Kaibab Limestone
• Koipato Formation (Nev.)
• Maroon Formation (Colo.)
• Meade Peak Member (Idaho and Wyo.)
• Nansen Formation (Nunavut)
• Owens Valley Group (Calif.)
• Peawaddy Formation (Qld.)
• ▶ Phosphoria Formation
• Pluto's Vale Member (South Africa)
• Queen Formation (N.M. and Tex.)
• ▶ Ripon Formation (South Africa)
• Rustler Formation (N.M. and Tex.)
• San Andres Formation (N.M. and Tex.)
• Siksikpuk Formation (Alaska)
• Spraberry Formation (Tex.)
• Trumpeters Member (South Africa)
• Vanrhynsdorp Group (South Africa)
• Vischkuil Formation (South Africa)
• White Rim Sandstone (Utah)
• Wichita Group (Tex. and Okla.)
• Wolfcamp Formation (Tex. and N.M.)
• Wonderfontein Member (South Africa)
• Yeso Formation (N.M. and Tex.)
• Zoute Kloof Member (South Africa)