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By: Mook, Charles Craig,Edition:Publication info: New York, N.Y American Museum of Natural History [1961]Volume: no.2072 (1961)Series:Holding Institution: American Museum of Natural History LibrarySubjects: 56.81,4:14.71,5 Allognathosuchus polyodon Crocodilians, Fossil Eocene Paleontology Reptiles, Fossil Skull WyomingBHL Collections: