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... > Science Keywords > EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > CNIDARIANS > ANTHOZOANS/HEXACORALS > HARD OR STONY CORALS

Preferred term

HARD OR STONY CORALS  

Definition

  • Scleractinia is a subclass of class Anthozoa (Phylum Cnidarian) of water-based organisms formed by colonial polyps with hexamerous symmetry, eight and ten part symmetry is not uncommon. Stony corals, known as hard corals or 'reef-building corals, are sessile marine organisms that secrete a calicum carbonate skeleton to protect it's soft body. Polyps are individual animals with a cylindrical body crowned by an oral disc and mouth surrounded by tentacles. (en)

Broader concept

Change note

  • 2017-03-13 14:09:01.0 [mgenazzi] Definition added insert Definition (id: null text: Scleractinia is a subclass of class Anthozoa (Phylum Cnidarian) of water-based organisms formed by colonial polyps with hexamerous symmetry, eight and ten part symmetry is not uncommon. Stony corals, known as hard corals or 'reef-building corals, are sessile marine organisms that secrete a calicum carbonate skeleton to protect it's soft body. Polyps are individual animals with a cylindrical body crowned by an oral disc and mouth surrounded by tentacles. language code: en);

URI

https://gcmd.earthdata.nasa.gov/kms/concept/dd4de9c8-e078-43cf-a7d8-78f289c8618e

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