[Phylum] [Arthropoda] Siebold, 1848 - arthropods
   Chelicerata Heymons, 1901
     Euchelicerata Weygoldt & Paulus, 1979
       Pantetrapulmonata Shultz, 2007
         [Order] Araneida Clerck, 1757 - spiders
           [Suborder] Araneae Clerck, 1757 - tailless spiders
             [Infraorder] Mesothelae Pocock, 1892 - segmented spiders
               Family †Arthrolycosidae Harger, 1874
                 1 Genus †Arthrolycosa Harger, 1874
                 2 Genus †Protolycosa Roemer, 1866