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By: Simpson, George Gaylord, - Scarritt Patagonian ExpeditionEdition:Publication info: New York City, The American Museum of Natural History, [1932]Volume: no.530 (1932)Series:Holding Institution: American Museum of Natural History LibrarySubjects: 56.9(116:8) Archaeoplus incipiens Argentina Cretaceous Mammals, Fossil Paleontology Proteodidelphys praecursor South America TertiaryBHL Collections: