Class Scorpionida Latreille, 1810 - scorpions
   Order Scorpiones Koch, 1837 - scorpions
     Suborder Neoscorpionina Thorell & Lindström, 1885
       Infraorder Orthosterni Pocock, 1911
         Superfamily Scorpionoidea Latreille, 1802
           Family Ischnuridae Simon, 1879, nom. rej. see Family Liochelidae Fet & Bechly, 2001 (1879)
             1 Subfamily Heteroscorpioninae Birula, 1903 see Family Heteroscorpionidae Kraepelin, 1905
             2 Subfamily Hemiscorpiinae Pocock, 1893 see Family Hemiscorpiidae Pocock, 1893
             3 Subfamily Ischnurinae Simon, 1879, nom. rej. see Subfamily Liochelinae Fet & Bechly, 2001 (1879)