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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 Pholadomyoida
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Family Thraciidae
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Genus Asthenothaerus
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Genus Bathythaerus
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Genus Bushia
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Genus Cochlodesma
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Genus Cyathodonta
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Genus Lampeia
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Genus Parvithracia
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Genus Thracia
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Genus Trigonothracia
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