Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           ?viruses
             [RNA viruses]
               1 [positive stranded ssRNA viruses]
               1.0 [+ve stranded ssRNA] see [unranked] positive stranded ssRNA viruses
               1.0 [positive-sense ssRNA viruses] see [unranked] positive stranded ssRNA viruses
               1.02.0 [naked RNA viruses] see Family Narnaviridae
               2 [negative stranded ssRNA viruses]
               2.0 [-ve stranded ssRNA] see [unranked] negative stranded ssRNA viruses
               2.0 [negative-sense ssRNA viruses] see [unranked] negative stranded ssRNA viruses
               3 [dsRNA viruses]