life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Arthropoda Siebold, 1848 - arthropods
     Class Arachnida Lamarck, 1801
       Micrura Hansen & Sørensen, 1904
         Megoperculata Börner, 1902
           Tetrapulmonata Shultz, 1990
             Order Araneae Clerck, 1757 - spiders see Suborder Araneae Clerck, 1757
               Suborder Opisthothelae Pocock, 1892 - modern spiders see Infraorder Opisthothelae Pocock, 1892
                 Araneomorphae Smith, 1902 see [unranked] Araneomorphae Smith, 1902
                   Neocribellatae Caporiacco
                     Araneoclada
                       Entelegynae Simon, 1893
                         canoe tapetum clade
                           divided cribellum clade Griswold, Coddington, Platnick & Forster, 1999
                             RTA Clade
                               1 Family Dictynidae Pickard-Cambridge, 1871
                               2 zodarioids see Family Zodariidae Thorell, 1881
                               3 Dionycha Petrunkevitch, 1928
                               4 amaurobioids