Rockport Quarry Limestone

The Rockport Quarry Limestone is a geologic formation in Michigan.

It preserves fossils dating back to the middle Devonian period.

The Devonian vertebrate fauna of the Rockport Quarry Limestone is the most diverse in Michigan.

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Stratigraphy of the Devonian deposits of the northern part of the Lower Peninsula of Michigan, showing the Rockport Quarry Limestone ^{[

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