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 Flavobacteriia Bernardet 2012
                   Order Flavobacteriales Bernardet 2012
                     01 Genus "Candidatus Merdimorpha" Gilroy et al. 2022, incertae sedis
                     02 Family Blattabacteriaceae Kambhampati 2012 [monotypic]
                     03 Family Crocinitomicaceae Munoz et al. 2016
                     04 Family Cryomorphaceae Bowman et al. 2003
                     05 Family Flavobacteriaceaeᵀ Reichenbach 1992
                     06 Family Ichthyobacteriaceae Takano et al. 2016 [monotypic]
                     07 Family Parvicellaceae Lucena et al. 2022 [monotypic]
                     08 Family Schleiferiaceae Albuquerque et al. 2011
                     09 Family Weeksellaceae García-López et al. 2020
                     10 Family "Halocolaceae" Hu et al. 2025 nom. inval. [monotypic]