Cotter and Jefferson City Dolomites
St. Peter Sanstone and Everton Formation (Middle Ordovician)
Powell Dolomite
Boone Formation
Cason Shale and Fernvale Limestone (Upper Ordovician) and Kimmswick Limestone, Plattin Limestone, and Joachim Dolomite (Middle Ordovician)
Ruddell Shale
Pitkin Limestone, Fayetteville Shale (including the Wedington Sandstone member), and Batesville Sandstone (including the Hindsville Limestone Member)