Tunicates are more closely related to craniates ( hagfish , lampreys , jawed vertebrates ) than to lancelets , echinoderms , hemichordates , or other invertebrates . Tunicates are more closely related to craniates ( including hagfish , lampreys , and jawed vertebrates ) than to lancelets , echinoderms , hemichordates , Xenoturbella or other invertebrates .