Kingdom [Animalia] Linnaeus, 1758 - animals
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   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
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     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
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       Subdivision Bilateralia
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         Phylum Chordata Bateson, 1885 - chordates
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           Subphylum Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
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             Class Amphibia Linnaeus, 1758 - amphibians see Class Amphibia Gray, 1825
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               Subclass †Lepospondyli Zittel, 1888 see Superorder Lepospondyli Zittel, 1887
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                 Order †Aistopoda (Miall, 1875) see Order Aïstopoda
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                   Family †Phlegethontiidae Cope, 1875
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                     Genus †Phlegethontia Cope, 1871
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