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Cenozoic mammal horizons of western North America

Osborn, Henry Fairfield, 1857-1935 author.
Washington, D.C. : Department of the Interior, United States Geological Survey, 1909. 1909

Evolution and distribution of the genus Mya, and Tertiary migrations of Mollusca

MacNeil, F. Stearns (Francis Stearns), 1909- author.
Washington : United States Department of the Interior, Geological Survey, 1965. 1965

The flora of the Denver and associated formations of Colorado

Knowlton, Frank Hall, 1860-1926 author.
Washington : United States Department of the Interior, Geological Survey, 1930. 1930

Geology and paleontology of Canal Zone and adjoining parts of Panama : geology and description of Te

Woodring, W. P. (Wendell Phillips), 1891-1983, author.
Washington : United States Department of the Interior, Geological Survey, 1957. 1957

On Marine Eocene, fresh water Miocene, and other fossil Mollusca of western North America

White, Charles A. (Charles Abiathar), 1826-1910, author.
Washington, D.C. : Department of the Interior, United States Geological Survey, 1885. 1885

Paleontology and stratigraphy of the Castle Hayne and Trent marls in North Carolina

Kellum, Lewis Burnett, 1897-1985, author.
Washington : Department of the Interior, United States Geological Survey, 1926. 1926

Small mammals, xenarthrans, and marine mammals

Cambridge : Cambridge University Press, 2008. 2008

Some insects of special interest from Florissant, Colorado, and other points in the Tertiaries of Co

Scudder, Samuel Hubbard, 1837-1911, author.
Washington, D.C. : Department of the Interior, United States Geological Survey, 1892. 1892