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]
           ?"viruses"
             Realm Riboviria
               Family Luteoviridae [monophyletic?]
                 1 Barley yellow dwarf virus GPV
                 2 Barley yellow dwarf virus SGV
                 3 Chickpea stunt disease associated virus
                 4 Groundnut rosette assistor virus
                 5 Indonesian soybean dwarf virus
                 6 Sweet potato leaf speckling virus
                 7 Tobacco necrotic dwarf virus
                 8 Genus Luteovirusᵀ
                 9.1 Genus Enamovirus
                 9.2 Genus Polerovirus