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 Thermoflexia Dodsworth et al. 2014 [monotypic] 1 Class Ardenticatenia Kawaichi et al. 2013 [monotypic] 2 Class Ktedonobacteria corrig. Cavaletti et al. 2007 3 Class Chloroflexiaᵀ Gupta et al. 2013 3.0 [Class "Chloroflexi"ᵀ Castenholz 2001 nom. inval.] see Class Chloroflexia Gupta et al. 2013 4.1 Class Anaerolineae Yamada et al. 2006 [monotypic] 4.2 Class Caldilineae Yamada et al. 2006 [monotypic] 5 Class Thermomicrobia Garrity and Holt 2002 5.0 [Class "Thermomicrobia" Garrity and Holt 2001] see Class Thermomicrobia Garrity and Holt 2002 n.0 [Genus "Dehalococcoides" nom. inval.] see Genus Dehalococcoides Löffler et al. 2013