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
                 Genus Kostyavirus
                   1 Mycobacterium virus 244
                   2 Mycobacterium virus Bask21
                   3 Mycobacterium virus CJW1ᵀ
                   4 Mycobacterium virus Eureka
                   5 Mycobacterium virus Kostya
                   6 Mycobacterium virus Porky
                   7 Mycobacterium virus Pumpkin
                   8 Mycobacterium virus Sirduracell
                   9 Mycobacterium virus Toto