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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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Brachiopoda (lamp-shells)
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Class Rhynchonellata
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Order Terebratulida
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Family Megathyrididae
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Genus Argyrotheca
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Species Argyrotheca angulata
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Species Argyrotheca arguata
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Species Argyrotheca australis
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Species Argyrotheca barrettiana
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Species Argyrotheca bermudana
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Species Argyrotheca cistellula
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Species Argyrotheca cordata
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Species Argyrotheca crassa
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Species Argyrotheca cuneata
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Species Argyrotheca grandicostata
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Species Argyrotheca hewatti
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Species Argyrotheca jacksoni
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Species Argyrotheca johnsoni
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Species Argyrotheca lowei
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Species Argyrotheca lutea
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Species Argyrotheca mayi
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Species Argyrotheca rubrocostata
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Species Argyrotheca rubrotincta
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Species Argyrotheca schrammi
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Species Argyrotheca somaliensis
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Species Argyrotheca thurmanni
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Species Argyrotheca woodwardiana
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