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Early and middle Bajocian (middle Jurassic) ammonites from southern Alaska (U.S. Geological Survey professional paper) - Ralph Willard Imlay
Early Jurassic ammonites from Alaska (Geological Survey professional paper) - Ralph Willard Imlay
Jurassic (Bathonian and Callovian) ammonites in eastern Oregon and western Idaho (Geological Survey professional paper) - Ralph Willard Imlay
Lower Jurassic (Pliensbachian and Toarcian) ammonites from eastern Oregon and California, (Contributions to paleontology) - Ralph Willard Imlay
Marine Jurassic pelecypods from central and southern Utah, (Contributions to paleontology) - Ralph Willard Imlay
Late Bajocian ammonites from southern Alaska (Geological Survey professional paper ; 1189) - Ralph Willard Imlay
Late Jurassic ammonites from Alaska (Geological Survey professional paper) - Ralph Willard Imlay
Upper Jurassic mollusks from eastern Oregon and western Idaho, (Contributions to paleontology) - Ralph Willard Imlay