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 Guernseyvirinae
                   1 Genus Kagunavirus [paraphyletic]
                   1.n.1 Genus Cornellvirus [monotypic]
                   1.n.2 Genus Jerseyvirus