Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
Count: [o†o] 3p;8c;66o;2f;3g; †1p;8c;79o;2f;14g;1s
   Phylum Chordata Bateson, 1885 - chordates
  Count: [o†o] 8c;66o;2f;2g; †7c;79o;1f;12g;1s
     Subphylum Craniata auct. see Subphylum Vertebrata Cuvier, 1812
    Count: [o†o] 5c;62o; †7c;79o;1f;11g;1s
       Superclass Myxinomorphi [monotypic]
      Count: [*†*] 1c;1o;1f;7g;5s; †1g;1s
         Class Myxini (Jaekel, 1911) [monotypic] see Subclass Myxinoidea
        Count: [*†*] 1o;1f;7g;5s; †1g;1s
           Order Myxiniformes - hagfishes
          Count: [*†*] 1f;7g;5s; †1g;1s
             Family Myxinidae Rafinesque, 1815 - hagfishes
            Count: [*] 7g;5s
               Subfamily Myxininae
              Count: [*] 4g;4s
                 Genus Notomyxine Nani & Gneri, 1951 [monotypic]
                Count: [*] 1s
                   Notomyxine tridentiger (Garman, 1899)
                  Count: -