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"
             Order Caudovirales
               Family Podoviridae
                 Subfamily Picovirinae
                   Genus Salasvirus
                     1 Kurthia virus 6
                     2.1 Bacillus virus GA1
                     2.2.1 Bacillus virus B103
                     2.2.2 Bacillus virus phi29ᵀ