calcarean

calcarean
Any sponge, of the class Calcarea, that has a skeleton composed of calcium carbonate spicules

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  • Clam — For other uses, see Clam (disambiguation). Clam Edible clams in the family Veneridae Scientific classification Kingdom …   Wikipedia

  • Calcareous sponge — Taxobox name = Calcareous sponges image caption = Calcispongiae from Ernst Haeckel s Kunstformen der Natur , 1904 regnum = Animalia phylum = Porifera classis = Calcarea classis horny = Bowerbank, 1864 subdivision ranks = Orders subdivision =… …   Wikipedia

  • sponge — spongeless, adj. spongelike, adj. spongingly, adv. /spunj/, n., v., sponged, sponging. n. 1. any aquatic, chiefly marine animal of the phylum Porifera, having a porous structure and usually a horny, siliceous or calcareous internal skeleton or… …   Universalium

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