Polystrate Rock

POLYSTRATE: What is a polystrate fossil?

Answer by John MackayWhat is polystrate? The word itself is easy: poly as in many, strate, as in layers or strata.  Therefore, polystrate means “many layers” and usually refers to fossils that protrude though one or more layers.  Here is a classic example of such a tree in Kentucky coal fields near town of Hazard […]

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