Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Lewisian  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Precambrian | |
| ..Proterozoic | |
| ...Lewisian | |
| UF | Hebridean |
| SN | Europe. |
| Lewisian Complex | |
|---|---|
| BT | Chronostratigraphic Units |
| .Precambrian | |
| ..Lewisian Complex | |
| RT | Archean |
| Proterozoic | |
| Scotland | |
| SN | NW Scotland. Includes Loch Maree Group. Indexed with ages as applicable. Added to Thesaurus in 1989. |