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The carapace and plastron of Basilemys sinuosus, a new fossil tortoise from the Laramie beds of Montana / By Elmer S. Riggs -- ; Oliver Cummings Farrington --
Publication info:
Chicago :Field Columbian Museum ,1906.
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The geological history and evolution of the horse / by Elmer S. Riggs, Assoc. Curator of Paleontology.
Publication info:
Chicago :Field Museum of Natural History,1932.
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Mounted skeleton of Homalodotherium / by Elmer S. Riggs --
Publication info:
Chicago :Field Museum of Natural History,1937.
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The Mylagaulidæ; an extinct family of sciuromorph rodents / by Elmer S. Riggs, A.M., Asst. Curator, Dept. of Geology ; Oliver Cummings Farrington, Ph.D., Curator, Dept. of Geology.
Publication info:
Chicago :Field Columbian Museum,1899.
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New or little known titanotheres from the lower Uintah formations, with notes on the stratigraphy and distribution of fossils / By Elmer S. Riggs -- Oliver Cummings Farrington --
Publication info:
Chicago :Field Museum of Natural History ,1912.
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Preliminary description of a new marsupial sabertooth from the Pliocene of Argentina / by Elmer S. Riggs --
Publication info:
Chicago :Field Museum of Natural History ,1933.
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Preliminary description of two Lower Miocene carnivores / by Elmer S. Riggs --
Publication info:
Chicago :Field Museum of Natural History ,1942.
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A skeleton of Astrapotherium / by Elmer S. Riggs --
Publication info:
Chicago :Field Museum of Natural History,1935.
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Some early Miocene carnivores / by Elmer S. Riggs --
Publication info:
Chicago :Field Museum Press ,1945
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A specimen of Elasmosaurus serpentinus / by Elmer S. Riggs --
Publication info:
Chicago :Field Museum of Natural History,1939.
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