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 Deltaproteobacteria Kuever et al. 2006
                   Order Polyangiales Waite et al. 2020
                     Family Polyangiaceaeᵀ Jahn 1924 (Approved Lists 1980)
                       01 Genus Aetherobacter Garcia et al. 2016
                       02 Genus Byssovorax Reichenbach 2006 [monotypic]
                       03 Genus Chondromyces Berkeley and Curtis 1874 (Approved Lists 1980)
                       04 Genus Jahnella corrig. Reichenbach 2007 [monotypic]
                       05 Genus Labilithrix Yamamoto et al. 2014 [monotypic]
                       06 Genus Minicystis Garcia et al. 2014 [monotypic]
                       07 Genus Phaselicystis Garcia et al. 2009 [monotypic]
                       08 Genus Polyangiumᵀ Link 1809 (Approved Lists 1980)
                       09 Genus Racemicystis Awal et al. 2016
                       10 Genus Sorangium (ex Jahn 1924) Reichenbach 2007 [monotypic]
                       11 Genus "Xihecaenibacterium" Li et al. 2023 nom. inval.
                       12 Genus "Xihemonas" Li et al. 2023 nom. inval.