[viruses]
   Realm Riboviria
     Order Nidovirales
       Suborder Arnidovirineae [monotypic]
         Family Arteriviridae
           Subfamily Simarterivirinae
             Genus Epsilonarterivirus
               Subgenus Sheartevirus
                 1 Epsilonarterivirus hemcepᵀ
                 2 Epsilonarterivirus safriver
                 3 Epsilonarterivirus zamalb