[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] Opisthothelae Pocock, 1892 - unsegmented spiders
               Araneomorphae Smith, 1902
                 CY Spigot Clade Wheeler et al., 2017
                   Entelegynae Simon, 1893
                     Superfamily Araneoidea Clerck, 1757
                       Family Synotaxidae Simon, 1894
                         01 Genus †Acrometa Petrunkevitch, 1942
                         02 Genus †Anandrus Menge, 1856
                         03 Genus †Balticosynotaxus Wunderlich, 2022
                         04 Genus †Chelicerinus Wunderlich, 2008
                         05 Genus †Cornuanandrus Wunderlich, 1986
                         06 Genus †Dubiosynotaxus Wunderlich, 2004
                         07 Genus †Eosynotaxus Wunderlich, 2004
                         08 Genus †Gibbersynotaxus Wunderlich, 2004
                         09 Genus †Protophysoglenes Wunderlich, 2004
                         10 Genus †Pseudoacrometa Wunderlich, 1986
                         11 Genus †Succinitaxus Wunderlich, 2004
                         12 Genus †Sulcosynotaxus Wunderlich, 2004