Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Keokuk Limestone  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Carboniferous | |
| ....Mississippian | |
| .....Lower Mississippian | |
| ......Osagian | |
| .......Keokuk Limestone | |
| RT | Iowa |
| Kentucky | |
| Missouri | |
| Illinois | |
| SN | Uppermost formation of Osagian Series. Iowa, Illinois, W Kentucky, and E Missouri. |