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 Iridoviridae
               Subfamily Alphairidovirinae
                 Genus Ranavirus
                   1 Singapore grouper iridovirus
                   2.1 Santee-Cooper ranavirus
                   2.2.1 Epizootic haematopoietic necrosis virus
                   2.2.2 Ambystoma tigrinum virus
                   2.2.3.1 Common midwife toad virus
                   2.2.3.2 Frog virus 3ᵀ