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
               Phylum Negarnaviricota
                 Subphylum Haploviricotina
                   Class Monjiviricetes
                     Order Mononegavirales
                       Family Rhabdoviridae
                         Genus Sigmavirus
                           1 Drosophila affinis sigmavirus
                           2 Drosophila ananassae sigmavirus
                           3 Drosophila immigrans sigmavirus
                           4 Drosophila melanogaster sigmavirusᵀ
                           5 Drosophila obscura sigmavirus
                           6 Drosophila tristis sigmavirus
                           7 Muscina stabulans sigmavirus