Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Jackfork Group  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Carboniferous | |
| ....Jackfork Group | |
| RT | Oklahoma |
| Arkansas | |
| SN | Divided into Wildhorse Mountain Formation, Prairie Mountain Formation, Markham Mill Formation, Wesley Formation, Game Refuge Formation. SE and central S Oklahoma; and SW Arkansas. |