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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Lophophorates (lophophorates)
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Order Cyclostomata
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Suborder Tubuliporina
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Family Plagioeciidae
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Genus Plagioecia
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Species Plagioecia ambigua
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Species Plagioecia dispar
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Species Plagioecia grimaldii
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Species Plagioecia patina
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Species Plagioecia sarniensis
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