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 Thermotogati Battistuzzi and Hedges 2024 Phylum "Candidatus Bipolaricaulota" Hao et al. 2023 [monotypic] Class "Candidatus Bipolaricaulia"ᵀ Chuvochina et al. 2023 nom. pro-inval. [monotypic] Order "Candidatus Bipolaricaulales"ᵀ Chuvochina et al. 2023 nom. pro-inval. [monotypic] 1 Family "Candidatus Bipolaricaulaceae"ᵀ Chuvochina et al. 2023 nom. pro-inval. [monotypic]