Roubidoux Formation

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Roubidoux Formation
Stratigraphic range: Ordovician
Roubidoux sandstone bluff.JPG
Outcrop of Roubidoux sandstone in the Missouri Ozarks
Type Formation
Underlies Jefferson City Formation in the Missouri Ozarks
Overlies Gasconade Formation [1]
Thickness100 to 300 feet [2]
Lithology
Primary Sandstone
Other dolomite, chert
Location
Coordinates 36°54′N92°34′W / 36.90°N 92.57°W / 36.90; -92.57
Region Missouri
Country United States
Type section
Named for Roubidoux Creek, Texas and Pulaski counties, Missouri [2]

The Roubidoux Formation is a geologic formation in the Ozarks of Missouri. It preserves fossils dating back to the Ordovician period.

Contents

Paleofauna

Monoplacophora

K. oregonensis [3]
W. inexpectans [3]

Gastropoda

L. perplana [4]

See also

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References

  1. ↑ Thompson, Thomas L., 2001, Lexicon of Stratigraphic Nomenclature in Missouri, Missouri Department of Natural Resources, Division of Geology and Land Survey, Report of Investigation Number 73, p 244-245
  2. 1 2 Thompson, Thomas L., Paleozoic Succession in Missouri: Part 2 Ordocician System, Report of Investigation No. 70, 1991, Missouri Department of Natural Resources, Rolla, MO, pp. 30-37
  3. 1 2 Stinchcomb, Bruce; Angeli, Nicholas (2002). "New Cambrian and Lower Ordovician monoplacophorans form the Ozark Uplift, Missouri". Journal of Paleontology. 76 (6): 965–974.
  4. ↑ 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
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