The Roubidoux Formation is a geologic formation in the Ozarks of Missouri. It preserves fossils dating back to the Ordovician period.
Paleofauna Monoplacophora Kirengella K. oregonensis Wildernessia W. inexpectans
Gastropoda Lecanospira L. perplana Heller, Robert L.,(1954). Stratigraphy and Paleontology of the Roubidoux Formation of Missouri, Volume 35, Second Series, 1954, State of Missouri, Division of Geological Survey and Water Resources, Rolla, Missouri. Pp.37-38 & Appendix B-Plate XIII See also
List of fossiliferous stratigraphic units in Missouri Paleontology in Missouri
References