Kingdom Animalia (animals) Eumetazoa (metazoans) Phylum Cnidaria (corals, sea anemones, jellyfish, and relatives) Class Anthozoa Order Scleractinia Family Caryophylliidae Genus Cladocora Species Cladocora arbuscula (Tube coral) Species Cladocora caespitosa (Pillow coral) Species Cladocora debilis (Thin tube coral) Species Cladocora pacifica