[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 Mimetidae Simon, 1881
                         Genus Ero Koch, 1836
                           Subgenus †Ero (Paleoero) Dunlop, Penney & Jekel, 2013, orth. inval. see Subgenus Palaeoero Wunderlich, 2004