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By: Meylan, Peter A. (Peter Andre) - Gaffney, Eugene S.Edition:Publication info: New York, N.Y, American Museum of Natural History, c1989Volume: no. 2941Series:Holding Institution: American Museum of Natural History LibrarySubjects: Adocus Classification Cretaceous Fallon County Montana Paleontology Reptiles, Fossil TrionychoideaBHL Collections: