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By: Wood, Albert Elmer, - Leidy, Joseph, - Cope, E. D. (Edward Drinker),Edition:Publication info: New York City, The American Museum of Natural History, [1936]Volume: no. 822 (1936)Series:Holding Institution: American Museum of Natural History LibrarySubjects: 56.9,32C(118:7) John Day River Region Mammals, Fossil Muridae, Fossil Neogene New Mexico Oligocene Oregon Paleontology Rodents, Fossil Santa Fe Group South Dakota West (U.S.)BHL Collections: