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Richmond Group
Richmond Group
Stratigraphic range: Ordovician
Type	Group
Sub-units	Big Hill Formation. Whitewater Formation
Location
Region	Michigan
Country	United States

Richmond Group (geology)

Last updated December 30, 2025

The Richmond Group is a geologic group in Michigan. It preserves fossils dating back to the Ordovician period.

In 1951, E. B. Branson, Mehl and C.C. Branson published an article about the Richmond Group conodonts of Kentucky and Indiana.^[1]

References

↑ Richmond Conodonts of Kentucky and Indiana. E. B. Branson, M. G. Mehl and C. C. Branson, Journal of Paleontology, Vol. 25, No. 1 (Jan., 1951), pages 1-17 (Stable URL retrieved 29 April 2016)

Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.

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[1] Richmond Conodonts of Kentucky and Indiana. E. B. Branson, M. G. Mehl and C. C. Branson, Journal of Paleontology, Vol. 25, No. 1 (Jan., 1951), pages 1-17 (Stable URL retrieved 29 April 2016)

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