Kingdom Animalia (animals) Eumetazoa (metazoans) Phylum Cnidaria (corals, sea anemones, jellyfish, and relatives) Class Anthozoa Order Scleractinia Family Caryophylliidae Genus Caryophyllia Species Caryophyllia ambrosia Infraspecies Caryophyllia ambrosia ambrosia (Horn coral) Infraspecies Caryophyllia ambrosia caribbeana (Horn coral)