Cyclic deposits, shale and limestone with sandstone, clay and several coal beds, some workable.
Cabaniss Subgroup - cyclic deposits, shale, sandstone, clay and several workable coal beds. Krebs Subgroup - cyclic deposits, sandstone, siltstone, shale, clay and some workable coal beds.
Weldon River-Warrensburg-Moberly Channel Sandstone.
Dominantly shale and sandstone with minor coal.
Cyclic deposits, limestone and shale with minor sandstone and coal.
Shale, clay, coal. Burgner Formation - limestone.
Keokuk Limestone, Burlington Limestone, Elsey Formation, Reeds Spring Formation, Pierson Limestone, Fern Glen Formation.