Abstract
Geological Relations of the Floras IN a memoir published in the first volume of the Transactions of this Society I have given a table of the Cretaceous formations of the western North West Territories of Canada, prepared by Dr. G. M. Dawson, and have fully stated the geological position of the plants at that time described. The new facts detailed now require us to intercalate in our table three distinct plant-horizons not previously recognised in the western territories of Canada. One of these, the Kootanie series, should probably be placed at the base of the table as a representative of the Urgonian or Neocomian, or, at the very least, should be held as not newer than the Shasta group of the United States Geologists, and the Lower Sandstones and Shales of the Queen Charlotte Islands. It would seem to correspond in the character of its fossil plants with the oldest Cretaceous floras recognised in Europe and Asia, and with that of the Komé formation in Greenland, as described by Heer. No similar flora seems yet to have been distinctly recognised in the United States, except, perhaps, that of the beds in Maryland, holding cycads, and which were referred many years ago by Tyson to the Wealden.
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The Cretaceous Floras of Canada 1 . Nature 33, 32–34 (1885). https://doi.org/10.1038/033032a0
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DOI: https://doi.org/10.1038/033032a0