Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Chelicerata Heymons, 1901 Class Arachnida Lamarck, 1801 Order Scorpiones Koch, 1837 - scorpions 1 Suborder †Branchioscorpionina Kjellesvig-Waering, 1986 2 Suborder Neoscorpionina Thorell & Lindström, 1885