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 Pseudomonadati (Gibbons and Murray 1978) Oren and Göker 2024
               Phylum Pseudomonadotaᵀ Garrity et al. 2021
                 Class Gammaproteobacteriaᵀ Garrity et al. 2005
                   Order Methylococcales Bowman 2005
                     Family Methylococcaceaeᵀ Whittenbury and Krieg 1984
                       Genus Methylomicrobium Bowman et al. 1995
                         1 Methylomicrobium agile (Bowman et al. 1993) Bowman et al. 1995
                         2 Methylomicrobium album (Bowman et al. 1993) Bowman et al. 1995
                         3 Methylomicrobium alcaliphilum Kalyuzhnaya et al. 2008
                         4 Methylomicrobium buryatense Kaluzhnaya et al. 2001
                         5 Methylomicrobium japanense Kalyuzhnaya et al. 2008
                         6 Methylomicrobium kenyense Kalyuzhnaya et al. 2008
                         7 Methylomicrobium pelagicum (Sieburth et al. 1988) Bowman et al. 1995