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 Chlorobiota Iino et al. 2021
                 Class Ignavibacteria Iino et al. 2010
                   Order Ignavibacterialesᵀ Iino et al. 2010
                     Family Ignavibacteriaceaeᵀ Iino et al. 2010 [monotypic]
                       Genus Ignavibacteriumᵀ Iino et al. 2010 [monotypic]
                         1 Ignavibacterium albumᵀ Iino et al. 2010