Description of two species of Hoploscaphites (Ammonoidea, Ancyloceratina) from the Upper Cretaceous (Lower Maastrichtian) of the U.S. Western Interior. (Bulletin of the American Museum of Natural History, no. 427)
Grier, James W. Grier, Joyce C. Kennedy, W. J. (William James) Landman, Neil H. Larson, Neal L. Linn, Tom.
Book
Ammonoidea , Bearpaw Formation , Great Plains , Hoploscaphites criptonodosus , Hoploscaphites macer , Pierre Shale , Saskatchewan , West (U.S.)
English
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