Author
Allen, J. A. (Joel Asaph), 1838-1921
1 results
Cope, E. D. (Edward Drinker), 1840-1897
1 results
Coues, Elliott, 1842-1899
Geological and Geographical Survey of the Territories (U.S.)
Hayden, F. V. (Ferdinand Vandeveer), 1829-1887
1 results
Leidy, Joseph, 1823-1891
1 results
Lesquereux, Leo, 1806-1889
1 results
Meek, F. B. (Fielding Bradford), 1817-1876
1 results
Packard, A. S. (Alpheus Spring), 1839-1905
1 results
Schmeckebier, Laurence Frederick, 1877-1959
1 results
Scudder, Samuel Hubbard, 1837-1911
1 results
Thomas, Cyrus, 1825-1910
1 results