👉 The term "chelonidae" refers to a group of animals that are characterized by having two sets of paired, similar body structures. This includes a head, a neck, and a thorax. The two sets of paired body structures are separated by an outer layer called the caudal fin or pectoral fins. These two sets are often referred to as the "head" and "tail," respectively. In the context of chelonid animals, the term "chelonida