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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 Asteroidea
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Order Paxillosida
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Family Astropectinidae
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Genus Leptychaster
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Species Leptychaster anomalus
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Species Leptychaster arcticus
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Species Leptychaster inermis
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Species Leptychaster pacificus
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Species Leptychaster propinquus
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