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
           1 Family Parvoviridae
           2 Family Papovaviridae see Family Papillomaviridae
           3 Family Adenoviridae
           4 Family Herpesviridae
           5 Family Iridoviridae
           6 Family Poxviridae