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 Flavobacteriia Bernardet 2012 [monotypic]
                   Order Flavobacteriales Bernardet 2012
                     Family Flavobacteriaceaeᵀ Reichenbach et al. 1992
                       Genus Gillisia Van Trappen et al. 2004
                         1 Gillisia hiemivivida Bowman and Nichols 2005
                         2 Gillisia illustrilutea Bowman and Nichols 2005
                         3 Gillisia limnaeaᵀ Van Trappen et al. 2004
                         4 Gillisia mitskevichiae Nedashkovskaya et al. 2005
                         5 Gillisia myxillae Lee et al. 2006
                         6 Gillisia sandarakina Bowman and Nichols 2005