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 Tombusviridae
                 Subfamily Procedovirinae
                   1 Ahlum waterborne virus incertae sedis
                   2 Bean mild mosaic virus incertae sedis
                   3 Chenopodium necrosis virus incertae sedis
                   4 Cucumber soil-borne virus incertae sedis
                   5 Weddel waterborne virus incertae sedis
                   6.1.1.1 Genus Tombusvirus
                   6.1.1.2 Genus Zeavirus [monotypic]
                   6.1.2 Genus Aureusvirus
                   6.2 Genus Betanecrovirus
                   7.1.1.1 Genus Alphanecrovirus
                   7.1.1.2 Genus Macanavirus [monotypic]
                   7.1.2 Genus Gallantivirus [monotypic]
                   7.2.1.1 Genus Panicovirus
                   7.2.1.2 Genus Machlomovirus [monotypic]
                   7.2.2.1 Genus Gammacarmovirus
                   7.2.2.2.1 Genus Betacarmovirus
                   7.2.2.2.2.1.1 Genus Pelarspovirus
                   7.2.2.2.2.1.2 Trailing lespedeza virus 1
                   7.2.2.2.2.2 Genus Alphacarmovirus