Chelicerata Heymons, 1901 Scorpiones Koch, 1837 - scorpions †Meristosternina Kjellesvig-Waering, 1986 Superfamily †Cyclophthalmoidea Thorell & Lindström, 1885 1 Family †Cyclophthalmidae Thorell & Lindström, 1885 [monotypic] 2 Family †Microlabiidae Kjellesvig-Waering, 1986, orth. inval. [monotypic] see Family Microlabidae Kjellesvig-Waering, 1986