Order Scorpiones Koch, 1837 - scorpions
   Suborder Neoscorpionina Thorell & Lindström, 1885
     Infraorder Orthosterni Pocock, 1911
       Parvorder Iurida Soleglad & Fet, 2003
         Superfamily Iuroidea Thorell, 1876
           Family Iuridae Thorell, 1876
             1 Genus Calchas Birula, 1899
             2 Genus Iurus Thorell, 1876