Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota J.R. Wagner, 2004 [J. Wiemann et al., 2020]
           Domain Bacteria (Haeckel, 1894) C.R. Woese et al., 1990 [paraphyletic?]
             Superphylum "Proteobacteria" J.W. Craig et al., 2010
               Phylum "Alphaproteobacteria" Garrity et al., 2006 [monotypic]
                 Class Alphaproteobacteriaᵀ Garrity et al., 2006
                   Order Rhodobacterales Garrity et al., 2006 [monotypic]
                     Family Rhodobacteraceaeᵀ Garrity et al., 2006
                       Genus Loktanella Van Trappen et al., 2004
                         Loktanella agnita Ivanova et al., 2005