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"
             Order Caudovirales
               Family Podoviridae
                 Subfamily Autographivirinae
                   Genus Pradovirus
                     1 Xylella virus Pradoᵀ
                     2.1 Xanthomonas virus f20
                     2.2 Xanthomonas virus f30