Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Atoka Formation  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Carboniferous | |
| ....Pennsylvanian | |
| .....Middle Pennsylvanian | |
| ......Atokan | |
| .......Atoka Formation | |
| RT | Oklahoma |
| Arkansas | |
| SN | Sandstone members: Coody (Coata), Pope Chapel, Georges Fork, Dirty Creek, Webbers Falls, and Blackjack School. Subdivided, in Arkansas, to include Greenland Sandstone Member at base. |