Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 1990 [paraphyletic?]
             Superphylum Terrabacteria Battistuzzi et al. 2004
               Phylum "Actinobacteria" Garrity and Holt 2001
                 Class Thermoleophilia Suzuki and Whitman 2013 [monotypic]
                   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