Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       [Order] Passeriformes Linnaeus, 1758
         suboscines see Suborder Suboscines
           Tyranni see Suborder Tyranni
             Family Thamnophilidae Swainson, 1824 - antbirds
               Genus Frederickena C. Chubb, 1918
                 1 Frederickena viridis (Vieillot, 1816) - black-throated antshrike
                 2 Frederickena unduligera (Pelzeln, 1869) - undulated antshrike