polyzoa defined in 1951 yearpolyzoa - polyzoa (bryozoa);
polyzoa - Sea-mats, corallines. Phylum of small, aquatic, usually fixed and colonial animals, superficially resembling hydroid coelenterates but considerably more complex. Have ciliated tentacles with which they feed; anus; coelom; some have horny or calcareous skeletons. Contains two classes, Ectoprocta and Endoprocta, which are usually regarded as distinct phyla.
near polyzoa in Knolik
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