Sikora, P.J., Howe, R.W., Gale, A.S. and Stein, J.A. (2003). Overview of the development of a Microfossil-calibrated time scale for the Upper Cretaceous for wider stratigraphic utility and absolute age control. In: NUNA Conference 2003: New frontiers in the Fourth Dimension: Generation, Calibration and Application of Geological timescales. Villeneuve, M. (Editors), Geological Association of Canada, Mont Tremblant, Quebec, Canada. 24. |
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