Introduction Frakes, L. A., Francis, J. E. & Syktus, J. I. (1992) Climate Modes of the Phanerozoic (Cambridge Univ. Press, Cambridge). Royer, Dana L., Robert
Introduction Frakes, L. A., Francis, J. E. & Syktus, J. I. (1992) Climate Modes of the Phanerozoic, Cambridge: Cambridge Univ. Press Royer, Dana L., Robert A
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