[viruses]
   Family Polyomaviridae
     Genus Gammapolyomavirus
       1 Anser anser polyomavirus 1
       2 Aves polyomavirus 1ᵀ
       3 Corvus monedula polyomavirus 1
       4 Cracticus torquatus polyomavirus 1
       5 Erythrura gouldiae polyomavirus 1
       6 Lonchura maja polyomavirus 1
       7 Pygoscelis adeliae polyomavirus 1
       8 Pyrrhula pyrrhula polyomavirus 1
       9 Serinus canaria polyomavirus 1