Class Scorpionida Latreille, 1810 - scorpions
   Order Scorpiones Koch, 1837 - scorpions
     Suborder Neoscorpionina Thorell & Lindström, 1885
       Infraorder Orthosterni Pocock, 1911
         Superfamily Vaejovoidea Thorell, 1876
           Family Vaejovidae Thorell, 1876
             Subfamily Syntropinae Kraepelin, 1905
               Tribe Paruroctonini see Subfamily Smeringurinae Soleglad & Fet, 2008
                 1 Genus Paravaejovis Williams, 1980
                 2 Genus Paruroctonus Werner, 1934
                 3 Genus Smeringurus Haradon, 1983
                 4 Genus Vejovoidus Stahnke, 1974