[Phylum] [Arthropoda] Siebold, 1848 - arthropods Chelicerata Heymons, 1901 Euchelicerata Weygoldt & Paulus, 1979 [Order] Palpigradi Thorell, 1888 - palpigrades Family Eukoeneniidae Petrunkevitch, 1955 1 Genus †Electrokoenenia Engel & Huang, 2016