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 Synergistota Jumas-Bilak et al. 2021
                 Family Thermosynergistaceae Yang et al. 2021, incertae sedis [monotypic]
                   1 Genus Thermosynergistesᵀ Yang et al. 2021