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 Bacteroidota Krieg et al. 2021
                 Class Cytophagia Nakagawa 2012 [monotypic]
                   Order Cytophagalesᵀ Leadbetter 1974 (Approved Lists 1980)
                     Family Cytophagaceaeᵀ Stanier 1940 (Approved Lists 1980)
                       1 Genus Chryseosolibacter Octaviana et al. 2025
                       2 Genus Chryseotalea Maejima et al. 2020
                       3 Genus Cytophagaᵀ Winogradsky 1929 (Approved Lists 1980)
                       4 Genus Dawidia Octaviana et al. 2025
                       5 Genus Edaphorhabdus Chhetri et al. 2019
                       6 Genus Litoribacter Tian et al. 2010 [monotypic]
                       7 Genus Sporocytophaga Stanier 1940 (Approved Lists 1980) [monotypic]
                       8 Genus "Natronocytophaga" Sorokin et al. 2025 nom. inval.
                       9 Genus "Candidatus Nephrothrix" Møller et al. 2020