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 Actinomycetota Goodfellow 2021
                 Class Thermoleophilia Suzuki and Whitman 2013
                   Order Thermoleophilalesᵀ Reddy and Garcia-Pichel 2009 [monotypic]
                     Family Thermoleophilaceaeᵀ Stackebrandt 2005 [monotypic]
                       Genus Thermoleophilumᵀ Zarilla and Perry 1986
                         1 Thermoleophilum album Zarilla and Perry 1986
                         2 Thermoleophilum minutum Zarilla and Perry 1986