Order Scorpiones Koch, 1837 - scorpions Family †Isobuthidae Petrunkevitch, 1913 1 Genus †Boreoscorpio Kjellesvig-Waering, 1986 2 Genus †Bromsgroviscorpio Kjellesvig-Waering, 1986 3 Genus †Feistmantelia Fritsch, 1904 4 Genus †Isobuthus Fritsch, 1904