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 Phycodnaviridae
               1.1.1 Genus Coccolithovirus [monotypic]
               1.1.2 Genus Phaeovirus
               1.2.1 Genus Prasinovirus
               1.2.2 Genus Chlorovirus
               2.1 Genus Prymnesiovirus [monotypic]
               2.2 Genus Raphidovirus [monotypic]