Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908 Phylum Chordata Bateson, 1885 - chordates Subphylum Craniata auct. Superclass Myxinomorphi [monotypic] see Infraphylum Myxinomorphi Class Myxini Jaekel, 1911 [monotypic] Order Myxiniformes - hagfishes ?Genus †Myxinikela Bardack, 1991 1 †Myxinikela siroka Bardack, 1991