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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Arthropoda (arthropods)
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Chelicerata (spiders, mites, scorpions, and relatives)
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Class Arachnida
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Order Not assigned
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Superfamily Chthonioidea
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Family Chthoniidae
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Genus Malcolmochthonius
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Species Malcolmochthonius malcolmi
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Species Malcolmochthonius oregonus
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Species Malcolmochthonius perplexus
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