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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 Chromadoria
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Order Araeolaimida
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Family Axonolaimidae
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Genus Southerniella
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Species Southerniella allometrica
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Species Southerniella brevicauda
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Species Southerniella cylindrolaimus
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Species Southerniella simplex
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Species Southerniella youngi
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