@book{bhlpg7542667, title = {Bulletin of the United States National Museum }, volume = {no.53:pt.2 (1907)}, url = {https://www.biodiversitylibrary.org/page/7542667}, publisher = {G.P.O}, author = {United States National Museum }, year = {1907}, pages = {Page 288}, } @book{bhlpg40497553, title = {Catalogue of the type and figured specimens of fossils, minerals, rocks, and ores in the Department of geology, United States National museum }, volume = {pt. 2 (1907)}, url = {https://www.biodiversitylibrary.org/page/40497553}, publisher = {Govt. print. off}, author = {Schuchert, Charles, 1858 -1942}, year = {1907}, pages = {Page 288}, } @book{bhlpg7540492, title = {Fossil flora of the Yellowstone National Park }, url = {https://www.biodiversitylibrary.org/page/7540492}, publisher = {Govt. Print Off}, author = {Knowlton, Frank Hall, 1860 -1926}, year = {1899}, pages = {Page 705}, } @book{bhlpg7540447, title = {Fossil flora of the Yellowstone National Park }, url = {https://www.biodiversitylibrary.org/page/7540447}, publisher = {Govt. Print Off}, author = {Knowlton, Frank Hall, 1860 -1926}, year = {1899}, pages = {Page 780}, } @book{bhlpg27063648, title = {Geology of the Yellowstone National Park : Part II, descriptive geology, petrography, and paleontology }, url = {https://www.biodiversitylibrary.org/page/27063648}, publisher = {Govt. Print. Off}, author = {Walcott, Charles D. (Charles Doolittle), 1850 -1927}, year = {1899}, pages = {Page 705}, } @book{bhlpg34508234, title = {Monographs of the United States Geological Survey }, volume = {v.32:pt.2 (1899)}, url = {https://www.biodiversitylibrary.org/page/34508234}, publisher = {Govt. Print. Off}, author = {Geological Survey (U.S.) }, year = {1899}, pages = {Page 774}, }