Chelicerata Heymons, 1901 Scorpiones Koch, 1837 - scorpions †Lobosternina Pocock, 1911 Superfamily †Isobuthoidea Petrunkevitch, 1913 Family †Eobuthidae Kjellesvig-Waering, 1986 [monotypic] Genus †Eobuthus Fritsch, 1904