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"
             "barley yellow dwarf virus"ᵀ
               (Isolate) "MAV isolate"ᵀ
               (Isolate) "PAV isolate"
               (Isolate) "RMV isolate"
               (Isolate) "RPV isolate"
               (Isolate) "SGV isolate"