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Titanotheres of Ancient Wyoming, Dakota and Nebraska
Henry Fairfield Osborn
United States Geological Survey
Monograph 55
1929
Volume 1 : pages 1-701 with 1-639 figures and 1-42 plates
Volume 2 : pages 703-953 with 640-797 figures and 43-236 plates
Rarely seen vintage originals, Raymond C. Moore's copies, rarely seen, very-well illustrated!
