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 Methylobacteriaceae Garrity et al. 2006
                       Genus Microvirga Kanso and Patel 2003
                         1 Microvirga subterraneaᵀ Kanso and Patel 2003
                         2 Microvirga aerilata Weon et al. 2010
                         3 Microvirga aerophila Weon et al. 2010
                         4 Microvirga flocculans (Takeda et al. 2004) Weon et al. 2010
                         5 Microvirga guangxiensis Zhang et al. 2009
                         6 Microvirga lotononidis Ardley et al. 2012
                         7 Microvirga lupini Ardley et al. 2012
                         8 Microvirga vignae Radl et al. 2014
                         9 Microvirga zambiensis Ardley et al. 2012