[Scorpiones] Koch, 1837 - scorpions
   Parvorder Buthida Soleglad & Fet, 2003
     1 Superfamily Buthoidea Koch, 1837
     2.1 Superfamily Chaeriloidea Pocock, 1893
     2.2 Superfamily Pseudochactoidea Gromov, 1998