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 Betaproteobacteria Garrity et al. 2006
                   Order Burkholderialesᵀ Garrity et al. 2006
                     1 Family Alcaligenaceae De Ley et al. 1986
                     2 Family Burkholderiaceaeᵀ Garrity et al. 2006
                     3 Family Comamonadaceae Willems et al. 1991
                     4 Family Oxalobacteraceae Garrity et al. 2006
                     5 Family Saeziaceae Lu and Chen 2024 [monotypic]
                     6 Family Sphaerotilaceae Liu et al. 2023
                     7 Family Sutterellaceae Morotomi et al. 2011
                     8 Family "Thiobacteraceae" Dukat et al. 2024 nom. inval. [monotypic]