Jefferson City Formation Explained

Jefferson City Formation
Type:	Formation
Age:	Early Ordovician
Period:	Early Ordovician
Prilithology:	Dolomite
Otherlithology:	Chert, sandstone
Namedfor:	Jefferson City, Cole County, Missouri^[1]
Namedby:	Arthur Winslow
Region:	Arkansas, Missouri
Country:	United States
Underlies:	Cotter Dolomite
Overlies:	Roubidoux Formation^[2]

The Jefferson City Formation or Jefferson City Dolomite is a geologic formation in the Ozarks of Missouri and Arkansas. The Jefferson City is in part not differentiated from the Cotter Formation of northern Arkansas.^[3] It preserves fossils dating back to the Ordovician period.

See also

• List of fossiliferous stratigraphic units in Missouri
• Paleontology in Missouri

References

• Web site: Fossilworks: Gateway to the Paleobiology Database. ((Various Contributors to the Paleobiology Database)). 17 December 2021.

36.625°N -90.8306°W

Notes and References

1. Winslow. A.. Lead and zinc deposits, section 1. Geological Survey of Missouri. 1894. 6. 331, 373, 375.
2. http://www.dnr.mo.gov/geology/geosrv/ogc/docs/RI-073.pdf 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 145
3. Web site: Ordovician of the Ozark Plateau . 2014-07-11 . https://web.archive.org/web/20140714131645/http://www.geology.ar.gov/geology/ozark_ordovician.htm . 2014-07-14 . dead .