Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Bloyd Formation  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Carboniferous | |
| ....Pennsylvanian | |
| .....Lower Pennsylvanian | |
| ......Morrowan | |
| .......Bloyd Formation | |
| RT | Oklahoma |
| Arkansas | |
| SN | Shale consists of (ascending) Brentwood Limestone Member, Woolsey Member and an unnamed shale division. NW Arkansas and E Oklahoma. |