Fernvale Limestone

Fernvale Limestone
Stratigraphic range: Ordovician
TypeFormation
UnderliesCason Shale
OverliesKimmswick Limestone
Thickness0 to 100+ feet in Arkansas
Lithology
PrimaryLimestone
Location
RegionArkansas, Tennessee
CountryUnited States
Type section
Named byCharles Willard Hayes and Edward Oscar Ulrich

The Fernvale Limestone is a geologic formation in Alabama, Arkansas, Illinois, Missouri, Oklahoma, and Tennessee. It preserves fossils dating back to the Ordovician period.

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