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 Methanobacteriati (Garrity and Holt 2023) Oren and Göker 2024
                 1 Phylum "Candidatus Hadarchaeota" Chuvochina et al. 2023 [monotypic]
                 2 Phylum "Candidatus Hadesarchaeota" Da Cunha et al. 2017 nom. pro-inval. [monotypic]
                 3 Phylum "Candidatus Hydrothermarchaeota" Jungbluth et al. 2023 [monotypic]
                 4 Phylum "Candidatus Poseidoniota" corrig. Rinke et al. 2023 [monotypic]
                 5 Phylum Methanobacteriotaᵀ Garrity and Holt 2023