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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 Diplogasterida
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Family Diplogasteridae
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Genus Allodiplogaster
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Genus Butlerius
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Genus Demaniella
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Genus Diplogaster
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Genus Diplogasterellus
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Genus Diplogasteriana
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Genus Diplogasteritus
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Genus Diplogasteroides
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Genus Fictor
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Genus Goffartia
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Genus Hemidiplogaster
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Genus Koernaria
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Genus Mesodiplogaster
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Genus Metadiplogaster
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Genus Micoletzkya
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Genus Mononchoides
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Genus Neodiplogaster
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Genus Paroigolaimella
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Genus Pristionchus
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Genus Prosodontus
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Genus Rhabditolaimus
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Genus Rhabdontolaimus
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Genus Syedella
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Genus Tawdenema
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Genus Tylolaimophorus
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Genus Tylopharynx
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