[Phylum] [Arthropoda] Siebold, 1848 - arthropods Chelicerata Heymons, 1901 Euchelicerata Weygoldt & Paulus, 1979 [Order] Pseudoscorpiones De Geer, 1778 [Suborder] †Palaeosphyronida Harvey, 2019 [monotypic] Superfamily †Dracocheloidea Schawaller, Shear & Bonamo, 1991 [monotypic] 1 Family †Dracochelidae Schawaller, Shear & Bonamo, 1991 [monotypic]