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  1. Brachiopoda and Lamellibranchiata of the Raritan clays and greensand marls of New Jersey / by Robert P. Whitfield.
    By: Whitfield, Robert Parr,
    Publication info: Washington ;Govt. Print. Off.,1885.
    Contributed by: University of Connecticut Libraries (archive.org)
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  2. Gasteropoda and Cephalopoda of the Raritan clays and Greensand Marls of New Jersey / by Robert P. Whitfield.
    By: Whitfield, Robert Parr,
    Publication info: Washington :Govt. Print. Off.,1892.
    Contributed by: University of Connecticut Libraries (archive.org)
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  3. Mollusca and Crustacea of the Miocene formations of New Jersey.
    By: Whitfield, Robert Parr,
    Publication info: Washington,Govt. print. off.,1894.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Institution Libraries
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  4. Part I. Palæontology. By F. B. Meek. Part II. Palæontology. By James Hall and R. P. Whitfield. Part III. Ornithology. By Robert Ridgway...
    By: Meek, F. B. - Hall, James, - Ridgway, Robert, - Whitfield, Robert Parr,
    Publication info: Washington,Govt. print. off.,1877.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Institution Libraries
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  5. Preliminary report on the paleontology of the Black Hills, by R. P. Whitfield, containing descriptions of new species of fossils from the Potsdam, Jurassic, and Cretaceous formations of the Black Hills of Dakota.
    By: Whitfield, Robert Parr,
    Publication info: Washington :Govt. Print. Off.,1877.
    Contributed by: University of California Libraries (archive.org)
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  6. Preliminary report on the paleontology of the Black Hills, containing descriptions of new species of fossils from the Potsdam, Jurassic, and Cretaceous formations of the Black Hills of Dakota.
    By: Whitfield, Robert Parr,
    Publication info: Washington,Govt. print. off.,July, 1877.
    Contributed by: Cornell University Library
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  7. Report of the Geological exploration of the fortieth parallel made by order of the Secretary of War according to acts of Congress of March 2, 1867, and March 3, 1869, under the direction of ... A.A. Humphreys, chief of engineers, by Clarence King, U.S. geologist
    By: United States Geological Exploration of the Fortieth Parallel - Bien, Julius, - Eaton, Daniel Cady, - Emmons, Samuel Franklin, - Hague, A. - Hague, James D. - Hall, James, - King, Clarence, - Meek, F. B. - Ridgway, Robert, - Watson, Sereno, - Whitfield, Robert Parr,
    Publication info: Washington :Govt. Print. Off.,1870-80
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Institution Libraries
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