Brodkorb, P. 1963. Catalogue of fossil birds. Part 1: Archaeopterygiformes through Ardeiformes. Bulletin of the Florida State Museum. Biological sciences 7 (4): 179-293. [19[17] Jun 1963] [Online]
Class Aves Linnaeus, 1758
Genus †Cayetanornis Brodkorb, new genus
Infraclass Carinatae Merrem, 1813, new rank
Infraclass Dromaeognathae Huxley, 1867, new rank
Infraclass Ratitae Merrem, 1813, new rank
†Cayetanornis parvulus (Rovereto)
Order Aepyornithiformes (A. Newton, 1884)
Order Apterygiformes (Haeckel, 1866)
Order Ardeiformes (Wagler, 1830)
Order Casuariiformes (Sclater, 1880)
Order Dinornithiformes (Gadow, 1893)
Order Gaviiformes Wetmore & W.D. Miller, 1926
Order Pelecaniformes Sharpe, 1891
Order Podicipediformes (Fürbringer, 1888)
Order Procellariiformes Fürbringer, 1888
Order Rheiformes (Forbes, 1884)
Order Sphenisciformes Sharpe, 1891
Order Struthioniformes (Latham, 1790)
Order Tinamiformes (Huxley, 1872)