Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
   Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
     Infraclass Neoaves Sibley et al., 1988 see Subcohort Neoaves Sibley et al., 1988
       Parvclass Passerae see Superorder Passerimorphae Sibley et al., 1988
         Superorder Cuculimorphae Sibley et al., 1988
           Order Cuculiformes Wagler, 1830 - cuckoos and plantain-eaters
             Infraorder Crotophagides see Order Cuculiformes Wagler, 1830
               Parvorder Neomorphida see Order Cuculiformes Wagler, 1830
                 Family Neomorphidae - roadrunners, ground-cuckoos see Subfamily Neomorphinae Shelley, 1891
                   1 Genus Tapera Thunberg, 1819
                   2 Genus Morococcyx P.L. Sclater, 1862
                   3 Genus Dromococcyx Wied, 1832
                   4 Genus Geococcyx Wagler, 1831
                   5 Genus Neomorphus Gloger, 1827