[viruses]
   Realm Riboviria
     Order Nidovirales
       Suborder Ronidovirineae
         Family Euroniviridae
           Subfamily Crustonivirinae [monotypic]
             Genus Paguronivirus [monotypic]
               Subgenus Behecravirus [monotypic]
                 Paguronivirus 1ᵀ