Phylum Chordata Bateson, 1885 - chordates
Class Aves Linnaeus, 1758 - birds
see Subclass Aves Linnaeus, 1758
Subclass Neornithes Gadow, 1893
see Clade Neornithes Gadow, 1893
Superorder Neognathae Pycraft, 1900
see Cohort Neognathae Pycraft, 1900
Order Galliformes Temminck, 1820 - fowl
Family Cracidae Vigors, 1825 - chachalacas, curassows, guans
Genus Oreophasis Gray, 1844
Oreophasis derbianus Gray, 1844 - horned guan