Wind Direction in the Western United States in the Late Paleozoic Opdyke, N. D. ; Runcorn, S. K. Abstract Publication: Geological Society of America Bulletin Pub Date: 1960 DOI: 10.1130/0016-7606(1960)71[959:WDITWU]2.0.CO;2 Bibcode: 1960GSAB...71..959O