Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Traverse Group  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Devonian | |
| ....Traverse Group | |
| RT | Michigan |
| SN | Middle and Upper Devonian. Comprises (ascending) Belle Shale, Rockport Quarry Limestone, Ferron Point Shale, Genshaw Formation, Koehler Limestone, Gravel Point Formation, and Beebe School Formation. In S Michigan. |