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 Herelleviridae
                 Subfamily Bastillevirinae
                   Genus Nitunavirus
                     1 Bacillus virus Grass
                     2 Bacillus virus NIT1ᵀ
                     3 Bacillus virus SPG24