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 "Candidatus Altarchaeota" corrig. Seitz et al. 2023 [monotypic] Class "Candidatus Altarchaeia"ᵀ Rinke et al. 2021 nom. pro-inval. [monotypic] Order "Candidatus Altarchaeales"ᵀ corrig. Probst et al. 2020 [monotypic] 1 Family "Candidatus Altarchaeaceae"ᵀ corrig. Probst et al. 2020 [monotypic]