Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Canyon Group  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Carboniferous | |
| ....Pennsylvanian | |
| .....Upper Pennsylvanian | |
| ......Canyon Group | |
| RT | United States |
| Texas | |
| SN | Includes Graford Formation, Winchell Limestone, Brad Formation, and Caddo Creek Formation. Central and N central Texas. |