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 "Deinococcus-Thermus" [monotypic] Class Deinococciᵀ Garrity and Holt 2002 Order Thermales Rainey and Da Costa 2002 [monotypic] Family Thermaceaeᵀ Da Costa and Rainey 2002 Genus Meiothermus Nobre et al. 1996 Meiothermus cateniformans Zhang et al. 2010