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 Siphoviridae
                 Subfamily Nclasvirinae
                   Genus Charlievirus
                     1 Mycobacterium virus Pipsqueaks
                     2 Mycobacterium virus Charlieᵀ
                     3 Mycobacterium virus Xeno