Cobban (Edited and with additions by W.J. Kennedy), William A., U.S. Geological Survey, Denver Federal Center, MS 980, Denver CO, 80225, United States
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Vol 66, No 4 (2016): William Aubrey "Bill" Cobban Memorial Volume Part 1 - Articles
A survey of the Cretaceous ammonite Placenticeras Meek, 1876, in the United States Western Interior, with notes on the earliest species from Texas
Abstract PDF