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2. Birds from the Pliocene of Juntura, Oregon;Brodkorb;Quart. Journ. Florida Acad. Sc.,1961
3. Catalogue of fossil birds. Part 1: Archaeopterygiformes through Ardeiformes;Brodkorb;Bull. Florida State Mus.,1963
4. Les oiseaux, genre Anas, du gisement aquitanien de Saint-Gérand-le-Puy (Allier);Cheneval;DEA Univ. Cl. Bernard-Lyon I,1979
5. Systematics and evolution of the Gruiformes (Class Aves). 3. Phylogeny of the suborder Grues;Cracraft;Bull. amer. Mus. nat. Hist.,1973