Phylum Chordata Bateson, 1885 - chordates 1 Subphylum †Calcichordata see Class Stylophora Gill & Caster, 1960 2 Subphylum Urochordata Bateson, 1885 - tunicates 3 Subphylum Cephalochordata Owen, 1846 - lancelets 4 Subphylum Vertebrata Cuvier, 1812 - vertebrates