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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 Cheilostomata
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Suborder Ascophora
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Family Adeonidae
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Family Bifaxariidae
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Family Calwelliidae
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Family Catenicellidae
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Family Celleporariidae
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Family Celleporidae
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Family Cheiloporinidae
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Family Cleidochasmatidae
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Family Conescharellinidae
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Family Crepidacanthidae
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Family Cryptosulidae
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Family Cyclicoporidae
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Family Escharellidae
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Family Eurystomellidae
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Family Euthyridellidae
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Family Euthyroididae
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Family Exechonellidae
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Family Exochellidae
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Family Gigantoporidae
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Family Hippopodinidae
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Family Hippoponellidae
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Family Hippoporinidae
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Family Hippothoidae
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Family Inversiulidae
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Family Lekythoporidae
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Family Mamilloporidae
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Family Microporellidae
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Family Mucronellidae
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Family Myriozoidae
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Family Onchoporidae
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Family Orbituliporidae
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Family Parmulariidae
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Family Pasytheidae
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Family Petraliellidae
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Family Petraliidae
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Family Phylactelliporidae
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Family Porinidae
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Family Reteporidae
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Family Savignyellidae
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Family Schizoporellidae
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Family Sclerodomidae
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Family Smittinidae
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Family Stomachetosellidae
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Family Tessaradomidae
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Family Teuchoporidae
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Family Tubucellariidae
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Family Umbonulidae
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Family Vittaticellidae
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Family Watersiporidae
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