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Sphinctozoa |
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Sphinctozoa [‚sfiŋk·tə′zō·ə] (paleontology) A group of fossil sponges in the class Calcarea which have a skeleton of massive calcium carbonate organized in the form of hollow chambers. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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