👉 Odontostomum is a type of animal that belongs to the order Echinodermata, which includes jellyfish and other aquatic animals. It has a long neck and a hard exoskeleton made of tough scales or cartilage. The body is composed mainly of soft, bony parts called appendages, such as the head, body, and tail. Odontostomum also have a unique ability to regenerate damaged tissues after being injured.