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 Fibrobacteres-Chlorobi-Bacteroidetes (FCB) Gupta 2004
               Phylum Bacteroidetes Krieg et al. 2012
                 Class Sphingobacteriia Kämpfer 2012 [monotypic]
                   Order Sphingobacterialesᵀ Kämpfer 2012
                     Family Sphingobacteriaceaeᵀ Steyn et al. 1998
                       Genus Arcticibacter Prasad et al. 2013
                         1 Arcticibacter pallidicorallinus Liu et al. 2014
                         2 Arcticibacter svalbardensis Prasad et al. 2013