Phylum Chordata Haeckel 1874
Parent taxon: Deuterostomia according to R. C. Brusca et al. 2016
See also Edgecombe et al. 2011, Nielsen 2012, Sepkoski 2002, Shoshani et al. 1989 and Zrzavy et al. 1998
Sister taxa: Ambulacraria, Saccorhytida, Vetulicolia, Xenacoelomorpha
Subtaxa: Cephalochordata Conodontophorida Craniata Metaspriggina Olfactores Tunicata Undichna Vertebrata