[Phylum] Chordata Bateson, 1885 - chordates
   Subphylum Craniata auct.
     Infraphylum Vertebrata Lamarck, 1801 - vertebrates
       Superclass †Thelodontomorphi Jaekel, 1911 [monotypic]
         Class †Thelodonti Jaekel, 1911
           Order †Loganelliiformes Turner, 1991
             Family †Loganelliidae Karatajūtė-Talimaa, 1997, nom. nud.
               Genus †Loganellia Fredholm, 1990