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Taylor, D. G.; Guex, J. (2002). The Triassic/Jurassic System boundary in the John Day Inlier, east-central Oregon. Oregon Geology. 64(1): 3-28.
Taylor, D. G.; Guex, J. (2002). The Triassic/Jurassic System boundary in the John Day Inlier, east-central Oregon. Oregon Geology. 64(1): 3-28.