living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Prokaryotae see Superkingdom Prokarya
     Kingdom Virus see [unranked] viruses
       vertebrate viruses
         DNA viruses
           Family Papovaviridae see Family Papillomaviridae
             Genus Polyomavirus
               1 "Polyoma virus"ᵀ
               2 "BK virus" see BK polyomavirus
               3 "JC virus" see JC polyomavirus
               4 "K virus"
               5 "RK Virus"
               6 "SV40 virus" see Simian virus 40