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]
               Superphylum DPANN Rinke et al. 2013
                 Phylum "Nanoarchaeota" Huber et al. 2002 [monotypic]
                   Genus "Nanoarchaeum"ᵀ H. Huber et al. 2002 nom. inval. [monotypic]
                     1 "Nanoarchaeum equitans"ᵀ H. Huber et al. 2002