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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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Order Notacanthiformes
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Genus Halosaurus
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Halosaurus radiatus
短头海蜥鱼
(Also: Halosaur paprscitý)