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 Bacillatiᵀ (Gibbons and Murray 1978) Oren and Göker 2024
               Phylum Cyanobacteriota Oren et al. 2022
                 Class Vampirovibrionophyceae corrig. Strunecký and Mareš 2023
                   Order "Candidatus Caenarcanales" corrig. Soo et al. 2022 [monotypic]
                     1 Family "Candidatus Caenarcanaceae"ᵀ Chuvochina et al. 2023 nom. pro-inval. [monotypic]