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 Myoviridae
                 Subfamily Vequintavirinae
                   Genus Seunavirus
                     1 Escherichia virus 4MG
                     2.1 Cronobacter virus GAP31
                     2.2.1 Salmonella virus PVPSE1ᵀ
                     2.2.2 Salmonella virus SSE121