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 Kapaibacteriota" corrig. Kantor et al. 2023, incertae sedis Class "Candidatus Kapaibacteriia"ᵀ Chuvochina et al. 2023 nom. pro-inval. [monotypic] Order "Candidatus Kapaibacteriales"ᵀ Chuvochina et al. 2023 nom. pro-inval. [monotypic] Family "Candidatus Kapaibacteriaceae"ᵀ Chuvochina et al. 2023 nom. pro-inval. [monotypic] Genus "Candidatus Kapaibacterium"ᵀ corrig. Kantor et al. 2020