Chelicerata Heymons, 1901 Scorpiones Koch, 1837 - scorpions Orthosternina Pocock, 1911 see Infraorder Orthosterni Pocock, 1911 Superfamily Chactoidea Pocock, 1893 Family †Palaeoeuscorpiidae Lourenço, 2003 1 Genus †Archaeoscorpiops Lourenço, 2015 2 Genus †Burmesescorpiops Lourenço, 2016 3 Genus †Palaeoeuscorpius Lourenço, 2003