Family Cardiidae | Order Veneroida Rank Genus | |
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Similar Pholadomya, Gervillia, Trigonia, Plagiostoma, Exogyra | ||
Protocardia is an extinct genus of saltwater clams, marine bivalve mollusks in the family Cardiidae, the cockles. The internal anatomy of individuals in this genus is sometimes preserved in phosphate.
References
Protocardia Wikipedia(Text) CC BY-SA