Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Montoya Group  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Ordovician | |
| ....Montoya Group | |
| RT | New Mexico |
| Texas | |
| Arizona | |
| SN | Middle and Upper Ordovician. Arizona, S New Mexico and W Texas. Includes Cable Canyon Sandstone, Upham Dolomite, Aleman Formation and Cutter Formation. Added to Thesaurus in 1989. |