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 "Candidatus Zhuqueibacterota" Lian et al. 2024 nom. nud. [monotypic]]
                 [Class "Candidatus Zhuqueibacteria"ᵀ Lian et al. 2024 nom. ined.]
                   [Order "Candidatus Residuimicrobiales" Lian et al. 2024 nom. nud.]
                     [Family "Candidatus Krinioviventaceae" Lian et al. 2024 nom. ined.]
                       1 [Genus "Candidatus Fontimicrobium" Lian et al. 2024 nom. ined.]
                       2 [Genus "Candidatus Fontivivens" Lian et al. 2024 nom. ined.]
                       3 [Genus "Candidatus Hydrothermomicrobium" Lian et al. 2024 nom. ined.]
                       4 [Genus "Candidatus Kriniovivens"ᵀ Lian et al. 2024 nom. ined.]