Tetrapulmonata Shultz, 1990
   Superorder Serikodiastida Garwood & Dunlop, 2014
     Order Araneida Clerck, 1757 - spiders
       Suborder †Chimerarachnida Wunderlich, 2018 [monotypic] - tailed spiders
         Family †Chimerarachnidae Wunderlich, 2019 [monotypic]
           Genus †Chimerarachneᵀ Wang, Dunlop, Selden, Garwood, Shear, Müller & Lei, 2018 [monotypic]
             1 †Chimerarachne yingi Wang, Dunlop, Selden, Garwood, Shear, Müller & Lei, 2018