Actinozoa ✦ < CONFIRMED >

: Includes sea anemones and stony corals. They typically have tentacles and mesenteries in multiples of six.

Actinozoans are the primary architects of , which are among the most biodiverse ecosystems on Earth. Stony corals secrete calcium carbonate skeletons that form the structural foundation of these reefs, providing habitat for thousands of other marine species. actinozoa

(now more commonly known as the class Anthozoa ) is a major group of marine invertebrates within the phylum Cnidaria . This class includes well-known sea creatures like sea anemones, stony corals, soft corals, and sea fans. Key Characteristics : Includes sea anemones and stony corals