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.
Keokuk Limestone, Burlington Limestone, Elsey Formation, Reeds Spring Formation, Pierson Limestone, Fern Glen Formation.
Weldon River-Warrensburg-Moberly Channel Sandstone.