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] Domain Bacteria Woese et al. 2024 Phylum "Candidatus Auribacterota" Williams et al. 2022 nom. nud., incertae sedis Class "Candidatus Ancaeobacteria" Williams et al. 2022 nom. nud. [monotypic] Order "Candidatus Ancaeobacterales"ᵀ Williams et al. 2022 nom. nud. [monotypic] Family "Candidatus Ancaeobacteraceae"ᵀ Williams et al. 2022 nom. nud. [monotypic] 1 Genus "Candidatus Ancaeobacter"ᵀ Williams et al. 2022 nom. pro-inval.