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Grammysiidae

Grammysiidae

Phylum: Mollusca
Class: Bivalvia
Order: Pholadomyoida
Family: Grammysiidae

Genera of Grammysiidae present in the Pennsylvanian of the American Midcontinent

Cardiomorpha

Cardiomorpha

Sanguinolites

Sanguinolites