Kingdom Animalia (animals) Eumetazoa (metazoans) Phylum Cnidaria (corals, sea anemones, jellyfish, and relatives) Class Anthozoa Order Scleractinia Family Astrocoeniidae Genus Stylocoeniella Species Stylocoeniella armata (Thorn coral) Species Stylocoeniella cocosensis (Thorn coral) Species Stylocoeniella guentheri (Thorn coral) Species Stylocoeniella nikei
