Observations on circular marks on sediments of Recent coasts, known to be the result of current action, and experiments with live and dead fishes are reported with reference to similar features observed in the Solnhofen lithographic limestones (Jurassic) of the Solnhofen region, Bavaria, Germany. The concentric features of the limestones are considered due to movement of the tail portion of a fish carcass caused by current action.

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