Class Scorpionida Latreille, 1810 - scorpions
   Order Scorpiones Koch, 1837 - scorpions
     Suborder Neoscorpionina Thorell & Lindström, 1885
       Infraorder †Palaeosterni (Stockwell, 1989)
         1 Genus †Eoctonus Petrunkevitch, 1913
         2 Genus †Buthiscorpius Petrunkevitch, 1953
         3 Genus †Allobuthiscorpius Kjellesvig-Waering, 1986 see Genus Compsoscorpius Petrunkevitch, 1949
         4 Genus †Apiscorpio Stockwell, 1989, orth. inval. see Genus Aspiscorpio Kjellesvig-Waering, 1986
         5 Genus †Anthracoscorpio Kušta, 1889
         6 Genus †Lichnoscorpius Petrunkevitch, 1949 see Genus Compsoscorpius Petrunkevitch, 1949
         7 Genus †Allobuthus Kjellesvig-Waering, 1986
         8 Genus †Coseleyscorpio Kjellesvig-Waering, 1986 see Genus Compsoscorpius Petrunkevitch, 1949