Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Georgetown Formation  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Lower Cretaceous | |
| .....Georgetown Formation | |
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Comanchean | |
| .....Georgetown Formation | |
| RT | Louisiana |
| Texas | |
| Arkansas | |
| Washita Group | |
| SN | Comanchean. In Washita Group. Central and S Texas, Arkansas, Louisiana. This term has multiple hierarchies. Added to Thesaurus in 1993. |