Francis Creek Shale

E2080487 UNEXPLORED

Francis Creek Shale is a Pennsylvanian-age rock formation in Illinois renowned for preserving the exceptionally diverse and well-preserved Mazon Creek fossil assemblage.

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All labels observed (1)

Label	Occurrences
Francis Creek Shale canonical	1

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Mazon Creek fossil beds → stratigraphicUnit → Francis Creek Shale ⓘ