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"
             Family Smacoviridae
               1 Genus Dragsmacovirus [monotypic]
               2 Genus Bovismacovirus
               3 Genus Cosmacovirus [monotypic]
               4 Genus Drosmacovirus
               5 Genus Huchismacovirus
               6 Genus Porprismacovirus