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 Chloroflexota Garrity and Holt 2021
                 Class Chloroflexiaᵀ corrig. Gupta et al. 2013
                   Order Chloroflexalesᵀ Gupta et al. 2013
                     Family Roseiflexaceae Gupta et al. 2013
                       1 Genus Heliothrix Pierson et al. 1986 [monotypic]
                       2 Genus Roseiflexusᵀ Hanada et al. 2002 [monotypic]
                       3 Genus "Candidatus Amarofilum" Petriglieri et al. 2023 nom. pro-inval.
                       4 Genus "Candidatus Kouleothrix" Klappenbach and Pierson 2004 nom. pro-inval.
                       5 Genus "Candidatus Ribeiella" Petriglieri et al. 2023 nom. pro-inval.