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 | |
| Type | Group |
| Sub-units | Bloyd Formation, Hale Formation |
| Underlies | Atoka Formation |
| Overlies | Pitkin Formation |
| Location | |
| Region | Arkansas |
| Country | United States |
| Type section | |
| Named for | Morrow, Washington County, Arkansas |
| Named by | George Irving Adams and Edward Oscar Ulrich[1] |
See also edit
References edit
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
References edit
- ^ 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.
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