Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Penobscot Formation  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...lower Paleozoic | |
| ....Penobscot Formation | |
| RT | Cambrian |
| Ordovician | |
| Maine | |
| SN | S central Maine. Cambrian? Later was considered Ordovician. Above Battio Quartzite; below Rockland Formation or Bucksport Formation. Indexed with age as applicable. Added to Thesaurus in 1989. |