Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Skull Creek Shale  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Lower Cretaceous | |
| .....Skull Creek Shale | |
| RT | Wyoming |
| Montana | |
| North Dakota | |
| South Dakota | |
| Colorado Group | |
| SN | NE Wyoming, Montana, North Dakota and South Dakota. Added to Thesaurus in 1985. |