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 Actinobacteriaᵀ Stackebrandt et al. 1997 Order Acidothermales Sen et al. 2014 [monotypic] Family Acidothermaceaeᵀ Rainey et al. 1997 [monotypic] 1 Genus Acidothermusᵀ Mohagheghi et al. 1986 [monotypic]