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. 1990 stat. inval. [paraphyletic?]] see Domain Bacteria Woese et al. 2024
             [Superphylum "Terrabacteria" Battistuzzi et al. 2004 nom. nud.]
               [Phylum "Firmicutes" (Gibbons and Murray 1978) Garrity and Holt 2001 stat. inval.] see Phylum Bacillota Gibbons and Murray 2021
                 [Class "Clostridia" "Garrity and Holt 2001" nom. nud.] see Class Clostridia Rainey 2010
                   3 [Order "Thermoanaerobacterales" Wiegel 2009 nom. inval.] see Order Thermoanaerobacterales Wiegel 2010
                   3.0 [Order "Thermoanaerobacteriales" "Garrity and Holt 2001" nom. nud.] see Order Thermoanaerobacterales Wiegel 2009 nom. inval.
                   4.0 [Order "Haloanaerobiales" Rainey and Zhilina 1995] see Order Halanaerobiales corrig. Rainey and Zhilina 1995