Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Archaea Woese et al. 2024 [paraphyletic]
               Kingdom Nanobdellati Rinke et al. 2024
                 Phylum Nanobdellotaᵀ Huber et al. 2023
                   Class "Nanoarchaeia" Vazquez-Campos et al. 2021 nom. inval.
                     Order "Nanoarchaeales"ᵀ Huber et al. 2016 nom. inval. [monotypic]
                       Family "Nanoarchaeaceae"ᵀ Huber et al. 2016 nom. inval. [monotypic]
                         1 Genus "Nanoarchaeum"ᵀ Huber et al. 2002 nom. inval. [monotypic]