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"
             Order Caudovirales
               Family Myoviridae
                 Subfamily Tevenvirinae
                   Genus Krischvirus
                     1 Escherichia virus ECD7
                     2 Escherichia virus GEC3S
                     3 Escherichia virus JSE
                     4 Escherichia virus phi1
                     5 Escherichia virus RB49ᵀ