[viruses]
   Realm Riboviria
     Order Nidovirales
       Suborder Arnidovirineae [monotypic]
         Family Arteriviridae
           Subfamily Variarterivirinae
             Genus Betaarterivirus
               1 Subgenus Ampobartevirus [monotypic]
               2 Subgenus Chibartevirus
               3 Subgenus Eurpobartevirus [monotypic]