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 Acidimicrobiia Norris 2013 [monotypic] Order Acidimicrobialesᵀ Stackebrandt et al. 1997 [monotypic] 1 Candidatus "Microthrix" [monotypic] 2 Suborder "Acidimicrobineae"ᵀ Garrity & Holt, 2001