LocNo: 3783Gaptank Fm.
| Country: |
USA
|
| Province: |
Texas, Brewster Co.
|
| Locality: |
Marathon, 3 mls W of
|
| Layer: | Gaptank Fm. |
| Lower Boundary: |
UTX middle Gaptank Fm. base, 306.5 million years
|
| Upper Boundary: |
UTX Gaptank Fm. top, 299 million years
|
| Georeference: |