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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Deuterostomia (deuterostomes)
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Echinodermata (sea stars, sea urchins, sea cucumbers, and relatives)
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Class Crinoidea
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Order Comatulida
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Family Antedonidae
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Genus Antedon
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Genus Argyrometra
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Genus Erythrometra
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Genus Florometra
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Genus Hathrometra
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Genus Helenametra
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Genus Heliometra
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Genus Hypalometra
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Genus Leptometra
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Genus Nanometra
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Genus Psathyrometra
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Genus Retiometra
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Genus Stylometra
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Genus Thaumatometra
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Genus Tonrometra
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