| Country: |
USA
|
| Province: |
Arkansas, Boone Co.
|
| Locality: |
Pilot Mt. 3.5 mls SW of Valley Springs
|
| Layer: | Brentwood Lst. |
| Lower Boundary: |
U Halian--Bloydian, Brentwood base, 313 million years
|
| Upper Boundary: |
UAR Brentwood Lst.--Woolsey, 312.5 million years
|
| Georeference: |
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