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"
             Family Polyomaviridae
               Genus Deltapolyomavirus
                 1.1 Human polyomavirus 7
                 1.2 Human polyomavirus 6ᵀ
                 2.1 Human polyomavirus 11
                 2.2 Human polyomavirus 10