Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Valentine Formation  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Neogene | |
| ....Pliocene | |
| .....Valentine Formation | |
| RT | Nebraska |
| Kansas | |
| South Dakota | |
| Ogallala Formation | |
| SN | In Ogallala Group. Composed largely of unconsolidated layers of greenish silty marl sand and very few local lenses of diatomaceous marl and light bluish-gray volcanic ash. In W Kansas, NW Nebraska, and SW South Dakota. |