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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Tardigrada (water bears)
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Class Heterotardigrada
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Order Arthrotardigrada
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Family Stygarctidae
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Genus Pseudostygarctus
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Species Pseudostygarctus apuliae
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Species Pseudostygarctus intermedius
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Species Pseudostygarctus mirabilis
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Species Pseudostygarctus rugosus
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Species Pseudostygarctus triangulatus
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