Class Scorpionida Latreille, 1810 - scorpions
   Order Scorpiones Koch, 1837 - scorpions
     Suborder Neoscorpionina Thorell & Lindström, 1885
       Infraorder Orthosterni Pocock, 1911
         Superfamily Vaejovoidea Thorell, 1876
           1 Family Vaejovidae Thorell, 1876
           2 Family Superstitionidae Stahnke, 1940 see Family Superstitioniidae Stahnke, 1940
           3 Family Iuridae Thorell, 1876