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Corals are marine invertebrates in the class Anthozoa o phylum Cnidaria. Thay teepically live in compact colonies o mony identical individual polyps. The group includes the important reef biggers that inhabit tropical oceans an secrete calcium carbonate tae form a haurd skelet.

ReferencesEedit

  1. Hoeksema, Bert (2015). "Octocorallia". World Register of Marine Species. Retrieved 2015-04-24. 
  2. Hoeksema, Bert (2015). "Hexacorallia". World Register of Marine Species. Retrieved 2015-04-24.