|View of east Quarry wall|
View of the eastern quarry wall of River Products Company Klein Quarry in Coralville, Iowa. This wall exposes strata of the Middle Devonian (Lower) Cedar Valley Group, in ascending order: the Little Cedar and Coralville Formations. The Little Cedar yields a plethora of cephalopods and trilobites, among other things. The Coralville, as its name implies, is known for, well, corals.
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