Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     Subphylum Chelicerata Heymons, 1901
       Class Arachnida Lamarck, 1801
         Order Scorpiones Koch, 1837 - scorpions
           Suborder †Branchioscorpionina Kjellesvig-Waering, 1986
             Infraorder †Meristosternina Kjellesvig-Waering, 1986 see Suborder Meristosternina Kjellesvig-Waering, 1986
               1 Superfamily †Cyclophthalmoidea Thorell & Lindström, 1885
               2 Superfamily †Palaeobuthoidea Kjellesvig-Waering, 1986 [monotypic]
               3 Superfamily †Tiphoscorpionoidea Kjellesvig-Waering, 1986 [monotypic]