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 Bacteroidiaᵀ Krieg 2012 [monotypic]
                   Order Bacteroidalesᵀ Krieg 2012
                     Family Marinilabiliaceae Ludwig et al. 2012
                       01 Genus Alkaliflexus Zhilina et al. 2005 [monotypic]
                       02 Genus Alkalitalea Zhao and Chen 2012 [monotypic]
                       03 Genus Anaerophaga Denger et al. 2002 [monotypic]
                       04 Genus Breznakibacter García-López et al. 2020
                       05 Genus Carboxylicivirga Yang et al. 2014
                       06 Genus Geofilum Miyazaki et al. 2012 [monotypic]
                       07 Genus Mangroviflexus Zhao et al. 2012 [monotypic]
                       08 Genus Marinilabiliaᵀ Nakagawa and Yamasato 1996
                       09 Genus Natronoflexus Sorokin et al. 2012 [monotypic]
                       10 Genus Plebeiibacterium corrig. Yu et al. 2025
                       11 Genus Saccharicrinis Yang et al. 2014
                       12 Genus Thermophagus Gao et al. 2013
                       13 Genus Xiashengella Huang et al. 2024