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 Thermodesulfobacteriota Garrity and Holt 2021
                 Class Desulfuromonadia Waite et al. 2020
                   Order Desulfuromonadalesᵀ corrig. Kuever et al. 2006
                     Family Geopsychrobacteraceae Waite et al. 2020
                       Genus Malonomonas Dehning and Schink 1990 [monotypic]
                         1 Malonomonas rubraᵀ Dehning and Schink 1990