Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Chelicerata Heymons, 1901 Class Arachnida Lamarck, 1801 Order Scorpiones Koch, 1837 - scorpions Suborder †Branchioscorpionina Kjellesvig-Waering, 1986 Infraorder †Bilobosternina Kjellesvig-Waering, 1986 see Suborder Bilobosternina Kjellesvig-Waering, 1986 1 Superfamily †Branchioscorpionoidea Kjellesvig-Waering, 1986