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 Chloroflexi Garrity and Holt 2001 Class Ktedonobacteria corrig. Cavaletti et al. 2007 1 Order Ktedonobacteralesᵀ corrig. Cavaletti et al. 2007 2 Order Thermogemmatisporales Yabe et al. 2011 [monotypic]