Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Williamsport Sandstone  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Silurian | |
| ....Upper Silurian | |
| .....Cayugan | |
| ......Williamsport Sandstone | |
| RT | Virginia |
| Maryland | |
| West Virginia | |
| SN | In Maryland, includes Cedar Hill Limestone Member (reallocated). Abruptly overlies calcareous shales of Mackenzie Formation. W Maryland, W Virginia, and N West Virginia. |