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
                 Mygalomorphae Pocock, 1892
                   Avicularoidea
                     Crassitarsae
                       1 "nemesiioids" see Family Nemesiidae Simon, 1892
                       1.n.1 Family Microstigmatidae (Roewer, 1942) Raven & Platnick, 1981
                       1.n.2 Theraphosodina
                       1.n.3 Rastelloidina