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
               1 Phylum Deinococcota Weisburg et al. 2021 [monotypic]
               2 Phylum Synergistota Jumas-Bilak et al. 2021
               3 Phylum Thermotogotaᵀ Reysenbach 2021 [monotypic]
               4 Phylum "Candidatus Acetithermota" corrig. Rinke et al. 2023 [monotypic]
               5 Phylum "Candidatus Bipolaricaulota" Hao et al. 2023 [monotypic]