Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Atokan  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Carboniferous | |
| ....Pennsylvanian | |
| .....Middle Pennsylvanian | |
| ......Atokan | |
| NT | Atoka Formation |
| RT | Manakacha Formation |
| Watahomigi Formation | |
| SN | Provincial series, North America: lower Middle Pennsylvanian. Above Morrowan, below Desmoinesian. |