Cedar Valley Formation

Last updated
Cedar Valley Formation
Stratigraphic range: Devonian
Type Formation
Underlies Lime Creek Formation
Location
Region Iowa
Country United States

The Cedar Valley Formation is a geologic formation in Iowa. It preserves fossils dating back to the Devonian period. No type locality has ever been designated for this formation, but it is best known for limestone and dolomite exposures in and around Johnson County, Iowa. The formation is exposed in numerous road cuts, quarries and valley walls over much of north-east and north-central Iowa. [1] [2]

See also

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References

  1. Bill J. Bunker, Brian J. Witzke and Jed Day, Upper Cedar Valley Stratigraphy North Central Iowa Lithograph City Formation, Guidebook 44, Geological Society of Iowa, Apr. 27, 1986.
  2. Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database" . Retrieved 17 December 2021.