Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           ?viruses
             Order Caudovirales
               Family Herelleviridae
                 Subfamily Twortvirinae
                   Genus Kayvirus
                     01 Staphylococcus virus G1
                     02 Staphylococcus virus G15
                     03 Staphylococcus virus JD7
                     04 Staphylococcus virus Kᵀ
                     05 Staphylococcus virus MCE2014
                     06 Staphylococcus virus P108
                     07 Staphylococcus virus Rodi
                     08 Staphylococcus virus S253
                     09 Staphylococcus virus S25-4
                     10 Staphylococcus virus SA12
                     11 Staphylococcus virus Sb1