Question

What are two invertebrates that are classified as chordates?

Answer 1

The two subphyla of invertebrate chordates, the subphylum Urochordata (1250 species) and the subphylum Cephalochordata (45 species), lack a vertebral column. Although insignificant and little known, these marine animals are of great scientific interest as it is generally accepted that their ancestors were close relatives of the ancestral vertebrate