Stiankoralen
Stiankoralen (Scleractinia) san en kategorii faan weederdiarten, diar üüb koralenraber uun a troopen lewe. Enkelt eilunen üs a Bahaamas an Bermuuda uun a Atlantik, a Malediiwen uun a Indisk Oosean of Tuwaalu an Kiribaati uun a Pasiifik stun üüb koralenraber.

Föörkemen 
 Wan det weeder tesken 20 an 29 graad warem as, kön troopisk koralen tu grat koloniin tuupwaaks. Stiankoralen brük tumanst 2,7% saalt uun't weeder, diaram fanjst dü jo uk ei uun a naite faan en müs faan en struum.

Süstemaatik 
Diar san wel 1490 slacher faan stiankoralen, diar uun 25 familin iindiald wurd:
 Kategorii Stiankoralen (Scleractinia Bourne, 1900)
 Famile Acroporidae Verrill, 1902
 Famile Agariciidae Gray, 1847
 Famile Anthemiphylliidae Vaughan, 1907
 Famile Astrocoeniidae Koby, 1890
 Famile Caryophylliidae Gray, 1846
 Famile Dendrophylliidae Gray, 1847
 Famile Euphylliidae Alloiteau, 1952
 Famile Faviidae Gregory, 1900
 Famile Flabellidae Bourne, 1905
 Famile Fungiacyathidae Chevalier, 1987
 Famile Fungiidae Dana, 1846
 Famile Gardineriidae Stolarski, 1996
 Famile Guyniidae Hickson, 1910
 Famile Meandrinidae Gray, 1847
 Famile Merulinidae Verrill, 1866
 Famile Micrabaciidae Vaughan, 1905
 Famile Mussidae Ortmann, 1890
 Famile Oculinidae Gray, 1847
 Famile Pectiniidae Vaughan & Wells, 1943
 Famile Pocilloporidae Gray, 1842
 Famile Poritidae Gray, 1842
 Famile Rhizangiidae d’Orbigny, 1851
 Famile Siderastreidae Vaughan & Wells, 1943
 Famile Trachyphylliidae Verrill, 1901
 Famile Turbinoliidae Milne-Edwards & Haime, 1848

Luke uk diar 

Näädeldiarten