[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010
       Class Gammaproteobacteria Garrity et al. 2005
         Order Chromatiales Imhoff 2005
           Family Ectothiorhodospiraceae Imhoff 1984
             Genus Methylothermus Tsubota et al. 2005 nom. inval.
               Methylothermus thermalis Tsubota et al. 2005 nom. inval.