Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus | 
| Osagian  | |
|---|---|
| BT | Chronostratigraphic Units | 
| .Phanerozoic | |
| ..Paleozoic | |
| ...Carboniferous | |
| ....Mississippian | |
| .....Lower Mississippian | |
| ......Osagian | |
| NT | Burlington Limestone | 
| Keokuk Limestone | |
| UF | Osagean | 
| RT | Boone Formation | 
| Waulsortian facies | |
| Valmeyeran | |
| SN | Provincial series, North America. Above Kinderhookian, below Meramecian. |