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 Hepeviridae
                 Genus Orthohepevirus
                   1 Orthohepevirus Aᵀ
                   2 Orthohepevirus B
                   3 Orthohepevirus C
                   4 Orthohepevirus D