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 Rhizobiales Kuykendall 2006 Family Beijerinckiaceae Garrity et al. 2006 Genus Beijerinckiaᵀ Derx 1950 (Approved Lists 1980) Beijerinckia indica (Starkey and De 1939) Derx 1950 (Approved Lists 1980) Beijerinckia indica subsp. indicaᵀ (Starkey and De 1939) Thompson and Skerman 1981