Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Earn Group  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Earn Group | |
| RT | Devonian |
| Mississippian | |
| British Columbia | |
| Yukon Territory | |
| SN | Devonian to Mississippian. British Columbia and Yukon Territory. Indexed with ages as applicable. Added to Thesaurus in 1993. |