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
           1 Family Scorpionidae Latreille, 1802
           2 Family Urodacidae Pocock, 1893
           3 Family Liochelidae Fet & Bechly, 2001 (1879) see Family Hormuridae Laurie, 1896
           4 Family Bothriuridae Simon, 1880