Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Trinity Group  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Lower Cretaceous | |
| .....Trinity Group | |
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Comanchean | |
| .....Trinity Group | |
| RT | Louisiana |
| Oklahoma | |
| Texas | |
| Antlers Sands | |
| Arkansas | |
| Glen Rose Formation | |
| Paluxy Formation | |
| Pearsall Formation | |
| Rodessa Formation | |
| Travis Peak Formation | |
| SN | Lower Cretaceous. Subdivided into (ascending) Pearsall, Rodessa, Ferry Lake, and Rusk time-stratigraphic units. In SW Arkansas, NW Louisiana, central S and SE Oklahoma, and Texas. This term has multiple hierarchies. |