Category:Ordovician formations in Pennsylvania

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Preceded by Proterozoic Eon	Phanerozoic Eon
	Paleozoic Era						Mesozoic Era			Cenozoic Era
	Cambrian	Ordovician	Silurian	Devonian	Carboniferous	Permian	Triassic	Jurassic	Cretaceous	Paleogene	Neogene	4ry

Subcategories

This category has the following 16 subcategories, out of 16 total.

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Kittatinny Supergroup‎ (3 C)

A

Allentown Dolomite‎ (2 F)
Austin Glen Formation‎ (5 F)

B

Bald Eagle Formation‎ (1 C, 6 F)

C

Chazy Formation‎ (3 C, 2 F)
Conestoga Formation‎ (6 F)

E

Epler Formation‎ (1 F)

J

Jacksonburg Limestone‎ (1 C, 2 F)
Juniata Formation‎ (2 C, 5 F)

L

Ledger Formation‎ (1 C, 5 F)

M

Martinsburg Formation‎ (5 C, 6 F)

R

Reedsville Formation‎ (1 C, 3 F)
Rickenbach Dolomite‎ (1 F)
Rockdale Run Formation‎ (1 C, 1 F)

S

Stonehenge Formation (U.S. geology)‎ (1 C, 2 F)

U

Utica Formation‎ (8 C, 8 F)

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