Chelicerata Heymons, 1901 Scorpiones Koch, 1837 - scorpions Suborder †Bilobosternina Kjellesvig-Waering, 1986 Superfamily †Branchioscorpionoidea Kjellesvig-Waering, 1986 Family †Branchioscorpioniidae Dunlop, Penney & Jekel, 2010, orth. inval. [monotypic] see Family Branchioscorpionidae Kjellesvig-Waering, 1986 1 Genus †Branchioscorpio Kjellesvig-Waering, 1986