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 Methanomethylicia" corrig. Vanwonterghem et al. 2020 1 Order "Candidatus Methanohydrogenicales" corrig. Berghuis et al. 2019 nom. pro-inval. [monotypic] 2 Order "Candidatus Methanomediales" Berghuis et al. 2021 [monotypic] 3 Order "Candidatus Methanomethylicales"ᵀ corrig. Vanwonterghem et al. 2020 [monotypic] 4 Order "Candidatus Methanomethyloarchaeales" Hua et al. 2019 nom. pro-inval. [monotypic] 5 Order "Candidatus Methanomethylovorales" Hua et al. 2019 nom. pro-inval. [monotypic]