Pottsville Formation
Geology
Group: Alleghany
Members: ? Putnam Hill limestone (1), Boggs limestone (1), Mercer Shale (9), Putnam Hill limestone (2), upper Mercer (2)
Lithologies: "shale" (6), "limestone" (15)
Paleoenvironments: carbonate indet. (9), coastal indet. (6)
Age range: Atokan or 318.60000 to 312.80000 Ma