Order Scorpiones Koch, 1837 - scorpions Suborder Neoscorpionina Thorell & Lindström, 1885 Infraorder Orthosterni Pocock, 1911 Parvorder Pseudochactida Soleglad & Fet, 2003 [monotypic] see Parvorder Buthida Soleglad & Fet, 2003 1 Superfamily Pseudochactoidea Gromov, 1998 [monotypic]