Order Scorpiones Koch, 1837 - scorpions Suborder Neoscorpionina Thorell & Lindström, 1885 Infraorder Orthosterni Pocock, 1911 Parvorder Buthida Soleglad & Fet, 2003 Superfamily Pseudochactoidea Gromov, 1998 [monotypic] Family Pseudochactidae Gromov, 1998