Abstract
THE possibility that changes have occurred during the past in the position of the earth's axis of rotation, relative to present surface features, is of great interest to all students of fossil plants. It has long been clear that the geological evidence of former vegetation shows that the lands around the Arctic Sea bore an ample covering of plants during a long period, probably from Devonian to Tertiary times. This vegetation included many large trees and was very different from the scanty flora of those regions living to-day. From other areas, such as South Africa, India and Australia, there is evidence of glacial conditions associated With relatively small flora.
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References
Gold, T., Nature, 175, 526 (1955).
British Antarctic (Terra Nova) Expedition, 1910, 1, 17 (1914).
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THOMAS, H. Instability of the Earth's Axis. Nature 176, 349 (1955). https://doi.org/10.1038/176349b0
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DOI: https://doi.org/10.1038/176349b0
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