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 Thermoproteati Guy and Ettema 2024
                 Phylum Thermoproteotaᵀ Garrity and Holt 2021
                   Class "Candidatus Bathyarchaeia" McGonigle et al. 2019 nom. pro-inval.
                     Order "Candidatus Baizomonadales" Hou et al. 2023 nom. pro-inval.
                       Family "Candidatus Baizostellaceae" Hou et al. 2023 nom. pro-inval.
                         Genus "Candidatus Baizosediminiarchaeum" Yu et al. 2023 nom. pro-inval.