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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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Amniota (amniotes)
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Order Squamata
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Family Viperidae
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Genus Vipera
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Species Vipera albizona
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Species Vipera eriwanensis
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Species Vipera lotievi
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Species Vipera magnifica
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Species Vipera orlovi
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Species Vipera sachalinensis
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Species Vipera transcaucasiana
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