Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           ?viruses
             [RNA viruses]
               [positive stranded ssRNA viruses]
                 [[unranked] "Hepatitis E-like viruses"] see Genus Hepevirus