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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Class Adenophorea
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Subclass Enoplia
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Order Enoplida
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Family Trefusiidae
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Genus Alaimonemella
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Genus Cytolaimium
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Genus Halanonchus
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Genus Rhabdocoma
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Genus Trefusia
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