Order Scorpiones Koch, 1837 - scorpions
   Suborder Neoscorpiones Thorell & Lindström, 1885 see Suborder Neoscorpionina Thorell & Lindström, 1885
     Infraorder Orthosterni Pocock, 1911
       Parvorder Iurida Soleglad & Fet, 2003
         Superfamily Scorpionoidea Latreille, 1802
           Family Liochelidae Fet & Bechly, 2001 (1879) see Family Hormuridae Laurie, 1896
             Subfamily Liochelinae Fet & Bechly, 2001 (1879) see Family Hormuridae Laurie, 1896
               1 Genus Cheloctonus Pocock, 1892
               2 Genus Chiromachetes Pocock, 1899
               3 Genus Chiromachus Pocock, 1893
               4 Genus Hadogenes Kraepelin, 1894
               5 Genus Iomachus Pocock, 1893
               6 Genus Liocheles Sundevall, 1833
               7 Genus Monodopisthacanthus Lourenco, 2001 see Subgenus Monodopisthacanthus Lourenço, 2001
               8 Genus Opisthacanthus Peters, 1861
               9 Genus Palaeocheloctonus Lourenço, 1996