Chelicerata Heymons, 1901 Scorpiones Koch, 1837 - scorpions Orthosternina Pocock, 1911 see Infraorder Orthosterni Pocock, 1911 Superfamily Buthoidea Koch, 1837 Family †Archaeobuthidae Lourenço, 2001 [monotypic] Genus †Archaeobuthus Lourenço, 2001