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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Deuterostomia (deuterostomes)
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Craniata (craniates)
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Euteleostomi (bony vertebrates)
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Tetrapoda (tetrapods)
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Genus Atretochoana
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Genus Boulengerula
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Genus Brasilotyphlus
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Genus Caecilia
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Genus Chthonerpeton
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Genus Crotaphatrema
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Genus Dermophis
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Genus Gegeneophis
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Genus Geotrypetes
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Genus Grandisonia
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Genus Gymnopis
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Genus Herpele
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Genus Hypogeophis
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Genus Idiocranium
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Genus Indotyphlus
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Genus Luetkenotyphlus
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Genus Microcaecilia
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Genus Mimosiphonops
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Genus Nectocaecilia
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Genus Oscaecilia
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Genus Parvicaecilia
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Genus Potomotyphlus
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Genus Praslinia
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Genus Schistometopum
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Genus Scolecomorphus
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Genus Siphonops
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Genus Sylvacaecilia
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Genus Typhlonectes
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