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  1. By: Kennedy, W. J. (William James) - Cobban, William Aubrey, - Landman, Neil H.
    Publication info: New York, N.Y, American Museum of Natural History, c1996
    Holding Institution: American Museum of Natural History Library
    Subjects: Acanthoceratidae  Cretaceous  Mollusks, Fossil  Paleontology  South Dakota