The Maastrichtian ammonites Coahuilites sheltoni Böse, 1928, and Sphenodiscus pleurisepta (Conrad, 1857), from the uppermost Pierre shale and basal Fox Hills formation of Colorado and Wyoming. American Museum novitates ; no. 3186
Cobban, William Aubrey, 1916- Kennedy, W. J. (William James) Landman, Neil H.
Book
1996
English
Find in a local library