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 Synergistetes Jumas-Bilak et al. 2009 [monotypic] Class Synergistiaᵀ Jumas-Bilak et al. 2009 [monotypic] Order Synergistales Jumas-Bilak et al. 2009 [monotypic] Family Synergistaceaeᵀ Jumas-Bilak et al. 2009 Genus Anaerobaculum Rees et al. 1997 1 Anaerobaculum hydrogeniformans Maune and Tanner 2012 2 Anaerobaculum mobile Menes and Muxí 2002 3 Anaerobaculum thermoterrenumᵀ Rees et al. 1997