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 "Proteobacteria" Craig et al. 2010 Phylum "Alphaproteobacteria" Garrity et al., 2006 [monotypic] Class Alphaproteobacteriaᵀ Garrity et al. 2006 Order Sphingomonadales Yabuuchi and Kosako 2006 Family Erythrobacteraceae Lee et al. 2005 Genus Altererythrobacter Kwon et al. 2007 Altererythrobacter luteolus (Yoon et al. 2005) Kwon et al. 2007