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By: Emerson, William K. - Puritan-American Museum Of Natural History Expedition To Western MexicoEdition:Publication info: New York, N.Y American Museum of Natural History [1965]Volume: no.2218 (1965)Series:Holding Institution: American Museum of Natural History LibrarySubjects: 59.432E Classification Holocene Mexico Mollusks Mollusks, Fossil Niso Pacific coast Pacific Coast (Central America) Pacific Ocean PaleontologyBHL Collections: