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 Chactoidea Pocock, 1893
           Family Chactidae Pocock, 1893
             1 Subfamily Chactinae Pocock, 1893
             2 Subfamily Brotheinae Simon, 1879
             3 Subfamily Uroctoninae Mello-Leitão, 1934