Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Chelicerata Heymons, 1901 Class Arachnida Lamarck, 1801 Order Scorpiones Koch, 1837 - scorpions Suborder Neoscorpionina Thorell & Lindström, 1885 1 Infraorder Orthosternina Pocock, 1911 see Infraorder Orthosterni Pocock, 1911