Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 1990 [paraphyletic?]
             Superphylum Terrabacteria Battistuzzi et al. 2004
               Phylum "Deinococcus-Thermus" [monotypic]
                 Class Deinococciᵀ Garrity and Holt 2002
                   Order Thermales Rainey and Da Costa 2002 [monotypic]
                     Family Thermaceaeᵀ Da Costa and Rainey 2002
                       Genus Oceanithermus Miroshnichenko et al. 2003
                         1 Oceanithermus desulfurans Mori et al. 2004
                         2 Oceanithermus profundusᵀ Miroshnichenko et al. 2003