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 Phylum "Candidatus Hadesarchaeota" Da Cunha et al. 2017 nom. pro-inval. [monotypic] Class "Candidatus Hadesarchaea"ᵀ Baker et al. 2016 nom. pro-inval. [monotypic] Order "Candidatus Hadesarchaeales"ᵀ Hua et al. 2019 nom. pro-inval. [monotypic] Family "Candidatus Hadesarchaeaceae"ᵀ corrig. Hua et al. 2019 nom. pro-inval. Genus "Candidatus Hadesarchaeum"ᵀ Hua et al. 2019 nom. pro-inval.