Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
San Juan Formation  | |
|---|---|
| RT | Arenigian |
| Argentina | |
| Lower Ordovician | |
| Pleistocene | |
| Puerto Rico | |
| Colorado | |
| Tertiary | |
| Tremadocian | |
| SN | Middle and upper Tertiary in SW Colorado; Pleistocene in Puerto Rico; Tremadocian-Arenigian in Argentina. Indexed with ages as applicable. |