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 Kingdom Pseudomonadati (Gibbons and Murray 1978) Oren and Göker 2024 Phylum Bacteroidota Krieg et al. 2021 Class "Candidatus Costitxiia" Gago et al. 2024 nom. pro-inval. [monotypic] Order "Candidatus Costitxiales"ᵀ Gago et al. 2024 nom. pro-inval. [monotypic] 1 Family "Candidatus Costitxiaceae"ᵀ Gago et al. 2024 nom. pro-inval. [monotypic]