👉 Kiliophora are a group of marine invertebrates that include jellyfish, clams, and brachiopods such as oysters, crabs, and mussels. They have a unique exoskeleton made up of a series of flattened cells called "kelp" (also known as a stipe or pith) which acts as the skeleton for their bodies. Kiliophora are found in various environments around the world, including warm and cold waters, coral reefs,