[Phylum] Chordata Bateson, 1885 - chordates
   Subphylum Craniata auct.
     Infraphylum Vertebrata Lamarck, 1801 - vertebrates
       Superclass †Anaspidomorphi
         Order †Jamoytiiformes
           Family †Jamoytiidae White, 1946
             1 Genus †Jamoytius White, 1946