The Morrow Group was a geologic group in Arkansas that is now abandoned and replaced by the Bloyd Formation and the Hale Formation. It preserves fossils dating back to the Pennsylvanian period.

Morrow Group
Stratigraphic range: Pennsylvanian
TypeGroup
Sub-unitsBloyd Formation, Hale Formation
UnderliesAtoka Formation
OverliesPitkin Formation
Location
RegionArkansas
CountryUnited States
Type section
Named forMorrow, Washington County, Arkansas
Named byGeorge Irving Adams and Edward Oscar Ulrich[1]

See also

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References

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

References

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  1. ^ Adams, G.I.; Ulrich, E.O. (1904). "Zinc and lead deposits of northern Arkansas" (PDF). U.S. Geological Survey Professional Paper. 24 (7): 28, 109–113. Bibcode:1904JG.....12..663.. doi:10.1086/621186. Retrieved 20 February 2018.