[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