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Porifera (sponges)
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Class Hexactinellida
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Order Hexactinosida
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Family Tretodictyidae
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Genus Anomochone
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Genus Cyrtaulon
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Genus Hexactinella
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Genus Psilocalyx
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Genus Sclerothamnopsis
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Genus Sclerothamnus
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Genus Tretocalyx
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Genus Tretodictyum
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