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 Tunavirinae
                   Genus Tunavirus
                     1 Escherichia virus ADB2
                     2 Escherichia virus JMPW1
                     3 Escherichia virus JMPW2
                     4 Escherichia virus T1ᵀ
                     5 Shigella virus PSf2
                     6 Shigella virus Shfl1
                     7 Shigella virus ISF002