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
       1 bacterial viruses
       2 plant viruses
       3 vertebrate viruses
       4 invertebrate viruses