The Viruses
   The RNA Viruses
     The Negative Stranded ssRNA Viruses
       Order Mononegavirales
         Family Paramyxoviridae
           Subfamily Paramyxovirinae see Family Paramyxoviridae
             Genus Avulavirus
               1 Avian paramyxovirus 2
               2 Avian paramyxovirus 3
               3 Avian paramyxovirus 4
               4 Avian paramyxovirus 5
               5 Avian paramyxovirus 6
               6 Avian paramyxovirus 7
               7 Avian paramyxovirus 8
               8 Avian paramyxovirus 9
               9 Newcastle disease virusᵀ