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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Mollusca (clams, snails, squids, and relatives)
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Class Bivalvia
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Order Veneroida
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Superfamily Cardioidea
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Family Cardiidae
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Genus Acanthocardia
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Genus Acrosterigma
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Genus Americardia
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Genus Cardium
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Genus Cerastoderma
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Genus Clinocardium
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Genus Dinocardium
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Genus Fragum
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Genus Laevicardium
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Genus Nemocardium
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Genus Papyridea
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Genus Parvicardium
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Genus Plagiocardium
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Genus Pratulum
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Genus Serripes
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Genus Trachycardium
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Genus Tridacna
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Genus Trigoniocardia
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