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  1. By: Cobban, William Aubrey, - Kennedy, W. J. (William James) - Landman, Neil H. - Larson, Neal L.
    Publication info: 2010
    Holding Institution: American Museum of Natural History Library
    Subjects: Ammonoidea  Hoploscaphites brevis  Hoploscaphites nodosus  Scaphites  West (U.S.)