St. Joe Formation

St. Joe Limestone Member
Stratigraphic range: Mississippian
Type	Member
Unit of	Boone Formation
Overlies	Chattanooga Shale
Thickness	up to 100 ft.[1]
Lithology
Primary	Limestone
Other	Chert
Location
Region	Arkansas, Missouri, Oklahoma
Country	United States
Type section
Named for	St. Joe, Searcy County, Arkansas
Named by	T.C. Hopkins[2]

The St. Joe Formation or St. Joe Limestone Member is a geologic formation or member in northern Arkansas, southern Missouri and northeastern Oklahoma.[1] It preserves fossils of the Mississippian subperiod including crinoids, brachiopods, bryozoa, conodonts, blastoids, ostracods and rugose coral.[1]

See also

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

References

1. St. Joe Limestone
2. Hopkins, T.C. (1893). "Marbles and other limestones". Annual Report of the Geological Survey of Arkansas for 1890. 4: 10, 91, 150, 209–211, 244, 249, 253–349, 383, pl. 3.

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.