Prismatophyllum percarinatum

The rugose coral Prismatophyllum percarinatum from the Gravel Point Fm. of Michigan (Devonian). This specimen was collected by A.W. Grabau.

Source: Polly, P. D. 2013. Department of Geological Sciences, Indiana University.

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Dr. P. David Polly

Department of Geological Sciences
Indiana University
1001 E. 10th Street
Bloomington, IN 47405