Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus | 
| Perry Formation  | |
|---|---|
| BT | Chronostratigraphic Units | 
| .Phanerozoic | |
| ..Paleozoic | |
| ...Devonian | |
| ....Upper Devonian | |
| .....Perry Formation | |
| RT | Pennsylvania | 
| SN | Consists of thick sequence of coarse clastic sediments containing interbedded basalt flows. Central Pennsylvania. |