Journal
Smithsonian Contributions to Knowledge.
Journal issues
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Meek, F.B. & Hayden, F.V., (1865).
Palæontology of the Upper Missouri: A report upon collections made principally by the expeditions under command of Lieut. G. K. Warren, U. S. Top. Engrs., in 1855 and 1856. Invertebrates. Part I, (Apr 1865): [i]-ix, 1–136, pls. I–V.