Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Archaea Woese et al. 1990 [paraphyletic]
               Candidate superphylum Asgard Zaremba-Niedzwiedzka et al. 2017 [paraphyletic]
                 Suborder Sphaerellarina
                   Superfamily Sphaeroidae
                     Tribe Periaxoplastidiata
                       1 Family Cyrtidosphaeridae
                       2 Family Stigmosphaeridae
                       3 Family Excentrochonchidae
                       4 Family Hollandosphaeridae