Class Scorpionida Latreille, 1810 - scorpions
   Order Scorpiones Koch, 1837 - scorpions
     Suborder Neoscorpionina Thorell & Lindström, 1885
       Infraorder Orthosterni Pocock, 1911
         Superfamily Scorpionoidea Latreille, 1802
           1 Family Bothriuridae Simon, 1880
           2 Family Ischnuridae Simon, 1879, nom. rej. see Family Liochelidae Fet & Bechly, 2001 (1879)
           3 Family Urodacidae Pocock, 1893
           4 Family Scorpionidae Latreille, 1802
           5 Family Diplocentridae Karsch, 1880