[Phylum] Chordata Bateson, 1885 - chordates
   Subphylum Craniata auct.
     Infraphylum Vertebrata Lamarck, 1801 - vertebrates
       Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
         Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
           Subclass Euselachii Hay, 1902 - sharks, rays, and related fossils
             Infraclass Elasmobranchii Bonaparte, 1838
               Superorder Squalomorphi
                 Order Squaliformes Compagno, 1973 - dogfish sharks
                   Family †Eoscymnidae Herman & van den Eeckhaut, 2010
                     Genus †Eoscymnus Herman & van den Eeckhaut, 2010