Chelicerata Heymons, 1901 Scorpiones Koch, 1837 - scorpions Orthosternina Pocock, 1911 see Infraorder Orthosterni Pocock, 1911 Superfamily Buthoidea Koch, 1837 Family †Chaerilobuthidae Lourenço & Beigel, 2011 [monotypic] 1 Genus †Chaerilobuthus Lourenço & Beigel, 2011