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
               Order Picornavirales
                 Family Marnaviridae
                   Genus Salisharnavirus
                     1.1 Britarnavirus 4ᵀ
                     1.2 Palmarnavirus 473
                     2.1 Britarnavirus 1
                     2.2 Palmarnavirus 128