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"
             Realm Riboviria
               Family Totiviridae
                 1 Genus Leishmaniavirus
                 2.1 Genus Giardiavirus [monotypic]
                 2.2 Genus Trichomonasvirus
                 3.1 Genus Victorivirus
                 3.2 Genus Totivirusᵀ