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] Cuculiformes Wagler, 1830 - cuckoos and plantain-eaters
         Family Cuculidae Vigors, 1825 - cuckoos
           Subfamily Neomorphinae Shelley, 1891
             Genus Neomorphus Gloger, 1827
               Neomorphus geoffroyi (Temminck, 1820) - rufous-vented ground-cuckoo
                 1 Neomorphus geoffroyi salvini Sclater, 1866
                 2 Neomorphus geoffroyi aequatorialis Chapman, 1923
                 3 Neomorphus geoffroyi australis Carriker, 1935
                 4 Neomorphus geoffroyi geoffroyi (Temminck, 1820)
                 5 Neomorphus geoffroyi maximiliani Pinto, 1962
                 6 Neomorphus geoffroyi dulcis Snethlage, 1927