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Bivalvia

Bivalvia

Phylum: Mollusca
Class: Bivalvia

Orders of Bivalvia present in the Pennsylvanian of the American Midcontinent

Conocardioida

Conocardioida

Modiomorphida

Modiomorphida

Mytiloida

Mytiloida

Nuculoida

Nuculoida

Pholadomyoida

Pholadomyoida

Pterioida

Pterioida

Solemyoida

Solemyoida

Trigonioida

Trigonioida

Veneroida

Veneroida