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 Pospiviroidae
                 Genus Cocadviroid
                   1 Citrus bark cracking viroid
                   2 Coconut cadang-cadang viroidᵀ
                   3 Coconut tinangaja viroid
                   4 Hop latent viroid