[Phylum] [Arthropoda] Siebold, 1848 - arthropods Chelicerata Heymons, 1901 Euchelicerata Weygoldt & Paulus, 1979 [Order] Ricinulei Thorell, 1876 - ricinuleids Suborder †Primoricinulei Wunderlich, 2015 Family †Primoricinuleidae Wunderlich, 2015 [monotypic] 1 Genus †Primoricinuleus Wunderlich, 2015