| Country: |
USA
|
| Province: |
Arkansas, Madison Co.
|
| Locality: |
Huntsville, 1 ml SW of
|
| Layer: | Hale Fm., upper Prairie Grove Member |
| Lower Boundary: |
UAR Cane Hill--Prairie Grove of Hale Fm., 314.8 million years
|
| Upper Boundary: |
U Halian--Bloydian, Brentwood base, 313 million years
|
| Georeference: |