LocNo: 3291Helms Fm.
| Country: |
USA
|
| Province: |
Texas, Culberson Co.
|
| Locality: |
Sierra Diablo
|
| Layer: | Helms Fm. |
| Lower Boundary: |
UTX Helms Fm. base, 326.4 million years
|
| Upper Boundary: |
UTX Helms Fm. top, 324 million years
|
| Georeference: |