Class Scorpionida Latreille, 1810 - scorpions
   Order Scorpiones Koch, 1837 - scorpions
     Suborder Neoscorpionina Thorell & Lindström, 1885
       Infraorder Orthosterni Pocock, 1911
         Superfamily Vaejovoidea Thorell, 1876
           Family Iuridae Thorell, 1876
             Subfamily Hadrurinae Stahnke, 1974 see Family Hadruridae Stahnke, 1974
               1 Genus Hadrurus Thorell, 1876
               2 Genus Anuroctonus Pocock, 1893