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
               Suborder Opisthothelae Pocock, 1892 - modern spiders
                 Araneomorphae Smith, 1902
                   Neocribellatae
                     Araneoclada
                       Entelegynae
                         Palpimanoidea Forster & Platnick, 1984
                           1.1 Family Mimetidae Simon, 1881
                           1.2 ?Family Malkaridae Davies, 1980
                           2.1.1 Family Huttoniidae Simon, 1893
                           2.1.2.1 Family Palpimanidae Thorell, 1870, nom. protect.
                           2.1.2.2 Family Stenochilidae Thorell, 1873
                           2.2.1 Family Micropholcommatidae Hickman, 1944
                           2.2.2.1 Family Holarchaeidae Forster & Platnick, 1984
                           2.2.2.2.1 Family Pararchaeidae Forster & Platnick, 1984
                           2.2.2.2.2.1 Family Archaeidae C.L. Koch & Berendt, 1854 - assassin spiders
                           2.2.2.2.2.2 Family Mecysmaucheniidae Simon, 1895