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Porifera (sponges)
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Class Hexactinellida
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Order Hexactinosida
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Family Aphrocallistidae
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Family Craticulariidae
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Family Cribrospongiidae
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Family Dactylocalycidae
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Family Euretidae
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Family Farreidae
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Family Hexactinosida incertae sedis
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Family Tretodictyidae
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