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?] Phylum Chrysiogenetes Garrity and Holt 2001 [monotypic] Class Chrysiogenetesᵀ Garrity and Holt 2002 [monotypic] Order Chrysiogenalesᵀ Garrity and Holt 2002 [monotypic] Family Chrysiogenaceaeᵀ Garrity and Holt 2002 Genus Desulfurispira Sorokin and Muyzer 2010 [monotypic] Desulfurispira natronophilaᵀ Sorokin and Muyzer 2010