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
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Class Reptilia Linnaeus, 1758 - reptiles
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Subclass Lepidosauria Duméril & Bibron, 1839
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Order Squamata Oppel, 1811
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Suborder Serpentes Linnaeus, 1758 - snakes
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Infraorder Caenophidia Hoffstetter, 1939
see Superfamily Xenophidia
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Family Viperidae Oppel, 1811 - vipers and pit vipers
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Genus Atheris Cope, 1862
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