Category:Ordovician sedimentary rocks in Oklahoma

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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 7 subcategories, out of 7 total.

C

Cotter Formation‎ (1 C, 2 F)
Crystal Mountain Sandstone‎ (1 C)

F

Fernvale Limestone‎ (1 C)

O

Oil Creek Formation‎ (1 C)

P

Polk Creek Shale‎ (1 C, 1 F)

V

Viola Formation‎ (2 C, 2 F)

W

Womble Shale‎ (1 C, 1 F)

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