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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 Aplacophora
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Order Cavibelonia
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Family Amphimeniidae
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Family Epimeniidae
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Family Pararrhopaliidae
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Family Proneomeniidae
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Family Rhopalomeniidae
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Family Simrothiellidae
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Family Strophomeniidae
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