[Scorpiones] Koch, 1837 - scorpions
   Parvorder Iurida Soleglad & Fet, 2003
     1 Superfamily Iuroidea Thorell, 1876
     2.1 Superfamily Bothriuroidea Simon, 1880
     2.2.1 Superfamily Caraboctonoidea Kraepelin, 1905
     2.2.2.1 Superfamily Chactoidea Pocock, 1893
     2.2.2.2.1.1 Superfamily Hadruroidea Stahnke, 1974
     2.2.2.2.1.2 Genus Uroctonus Thorell, 1876, incertae sedis
     2.2.2.2.2.1 Genus Belisarius Simon, 1879, incertae sedis
     2.2.2.2.2.2.1 Superfamily Scorpionoidea Latreille, 1802
     2.2.2.2.2.2.2 Superfamily Vaejovoidea Thorell, 1876