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 Gammapolyomavirus
                 1 Pygoscelis adeliae polyomavirus 1
                 2.1.1 Anser anser polyomavirus 1
                 2.1.2.1 Cracticus torquatus polyomavirus 1
                 2.1.2.2.1 Corvus monedula polyomavirus 1
                 2.1.2.2.2 Erythrura gouldiae polyomavirus 1
                 2.2.1 Serinus canaria polyomavirus 1
                 2.2.2.1 Aves polyomavirus 1ᵀ
                 2.2.2.2.1 Pyrrhula pyrrhula polyomavirus 1
                 2.2.2.2.2 Lonchura maja polyomavirus 1