thorny coral Directory References Discover How a Rejected Block of Marble Became the World’s Most Famous Statue Who Votes for the Academy Awards? Causes of the Great Depression Who Was the Woman Behind the Statue of Liberty? 10 Greatest Baseball Players of All Time 12 Greek Gods and Goddesses 7 Puzzling Plane Disappearances Contents thorny coral invertebrate Ask the Chatbot a Question Ask the Chatbot a Question Learn about this topic in these articles:classification In coral…1,000 species; black corals and thorny corals (Antipatharia), about 100 species; horny corals, or gorgonians (Gorgonacea), about 1,200 species; and blue corals (Coenothecalia), one living species.Read More