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 Alphaproteobacteria Garrity et al. 2006
                   Order Sphingomonadales Yabuuchi and Kosako 2006
                     Family Erythrobacteraceae Lee et al. 2005
                       01 Genus Alteraurantiacibacter Xu et al. 2020
                       02 Genus Altererythrobacter Kwon et al. 2007
                       03 Genus Altericroceibacterium Xu et al. 2020
                       04 Genus Alteripontixanthobacter Xu et al. 2020
                       05 Genus Alteriqipengyuania Xu et al. 2020
                       06 Genus Aurantiacibacter Xu et al. 2020
                       07 Genus Caenibius Hördt et al. 2020
                       08 Genus Croceibacterium Liu et al. 2019
                       09 Genus Croceicoccus Xu et al. 2009 [monotypic]
                       10 Genus Erythrobacterᵀ Shiba and Simidu 1982
                       11 Genus Fulverythrobacter Lin et al. 2026
                       12 Genus Novosphingobium Takeuchi et al. 2001
                       13 Genus Paraurantiacibacter Xu et al. 2020
                       14 Genus Parerythrobacter Xu et al. 2020
                       15 Genus Pelagerythrobacter Xu et al. 2020
                       16 Genus Pontixanthobacter Xu et al. 2020
                       17 Genus Pseudopontixanthobacter Sun et al. 2020
                       18 Genus Qipengyuania Feng et al. 2015
                       19 Genus Tsuneonella Xu et al. 2020
                       20 Genus "Citrimicrobium" Jung et al. 2014 nom. inval.
                       21 Genus "Litorerythrobacter" Kathiresan et al. 2026 nom. inval.