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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 Secernentea
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Order Tylenchida
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Family Allantonematidae
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Family Anguinidae
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Family Criconematidae
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Family Fergusobiidae
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Family Heteroderidae
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Family Hoplolaimidae
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Family Iotonchiidae
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Family Neotylenchidae
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Family Pratylenchidae
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Family Psilenchidae
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Family Sphaerulariidae
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Family Tylenchidae
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Family Tylenchorhynchidae
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Family Tylenchulidae
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