Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Wristen Formation  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Silurian | |
| ....Upper Silurian | |
| .....Wristen Formation | |
| RT | Texas |
| SN | Upper Silurian. West Texas. Added to Thesaurus in 1995. |