Description : Into which subphyla are the protochordates divided? What are some representatives of each protochordate subphylum?
Last Answer : Urochordates (or tunicates) and cephalochordates are the two subphyla into which protochordates are divided. Ascidians, sessile animals similar to sponges, are examples of tunicates. The amphioxus, well-studied in Embryology, is an example of cephalochordate.