Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Pierre Shale  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Upper Cretaceous | |
| .....Pierre Shale | |
| RT | Wyoming |
| Montana | |
| Colorado | |
| Nebraska | |
| North Dakota | |
| Minnesota | |
| South Dakota | |
| Montana Group | |
| Gammon Ferruginous Member | |
| Sharon Springs Member | |
| SN | In Montana Group. E Colorado, W Minnesota, E Montana, Nebraska, North Dakota, South Dakota, and E Wyoming. |