[Phylum] [Arthropoda] Siebold, 1848 - arthropods Chelicerata Heymons, 1901 Euchelicerata Weygoldt & Paulus, 1979 [Order] Scorpiones Koch, 1837 - scorpions [Suborder] †Holosternina Kjellesvig-Waering, 1986 Superfamily †Mesophonoidea Wills, 1910 Family †Centromachidae Petrunkevitch, 1953 Genus †Opsieobuthus Kjellesvig-Waering, 1986