Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Opeche Shale  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Permian | |
| ....Lower Permian | |
| .....Opeche Shale | |
| RT | Wyoming |
| Montana | |
| Nevada | |
| South Dakota | |
| SN | SE Montana, NW Nevada, W South Dakota and Wyoming. Added to Thesaurus in 1989. |