Category:Cystoidea

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Cystoidea, a prehistoric Echinoderm class of the subphylum Crinozoa. Extinct marine invertebrate echinoderms of the Paleozoic Era, with a fossil record in Europe and North America.

Pages in category "Cystoidea"

The following 2 pages are in this category, out of 2 total. This list may not reflect recent changes.

 

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