Morrow Group | |
Type: | Group |
Age: | Pennsylvanian |
Namedfor: | Morrow, Washington County, Arkansas |
Namedby: | George Irving Adams and Edward Oscar Ulrich[1] |
Region: | Arkansas |
Country: | United States |
Subunits: | Bloyd Formation, Hale Formation |
Underlies: | Atoka Formation |
Overlies: | Pitkin Formation |
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.