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Post-Glacial Fossil Mollusca in Western Canada

Published online by Cambridge University Press:  01 May 2009

Alan Mozley
Alan Mozley
Affiliation:
The University, Edinburgh, and the Johns Hopkins University.
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Extract

From the standpoint of biological geography, the most significant event in the recent history of Canada has been the occurrence of widespread severe glaciation. This resulted in the whole of the previously existing fauna being either exterminated or driven southward. When the ice sheets receded northwards at the end of the last glacial period, this region was once more populated by animals, including both fresh water and terrestrial mollusca, the remains of which are to be found in various post-glacial deposits. The migration of animals into this new territory did not take place all at once, and it is noteworthy that no fossil mollusca have been found in the deposits laid down during the early stages of the glacial retreat. The purpose of this paper is to give in concise form the history of the present molluscan fauna of this region in so far as it is evidenced by the post-glacial fossils found in the region. The series of fossil-bearing deposits herein described is far from complete, and many additional finds will doubtless be made in the course offuture field work. Nevertheless, a sufficient number of observations has been made to indicate the general nature and duration of the molluscan immigration into the area.

Type
Original Articles
Information
Geological Magazine , Volume 71 , Issue 8 , August 1934 , pp. 370 - 382
Copyright
Copyright © Cambridge University Press 1934

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References

BIBLIOGRAPHY

1.Baker, F. C. “The Life of the Pleistocene or Glacial Period,” Bull. Univ. Illinois, xvii 1920, 1–476.Google Scholar
2.Baker, F. C. “The Importance of Ecology in the Interpretation of Fossil Faunas,” Ecology, iii 1921, 277–288.CrossRefGoogle Scholar
3.Baker, F. C. “Influence of the Glacial Period in Changing the Character of the Molluscan Fauna of North America,” Ecology, xi 1920, 469–479.Google Scholar
4.Baker, F. C. “A Restudy of the Interglacial Molluscan Fauna of Toronto, Canada,” Trans. Ill. State Acad. Sci., 23 1931, 358–366.Google Scholar
5.Coleman, A. P. “Glacial and Post-Glacial Lakes in Ontario,” Univ. Toronto Studies, No. 10 1922.Google Scholar
6.Johnston, W. A. “Winnipegosis and Upper Whitemouth River Areas, Manitoba: Pleistocene and Recent Deposits,” Geol. Surv. Canada, Memoir 128 1921.Google Scholar
7.Kennard, A. S., and Woodward, B. B. Synonymy of the British Non-Marine Mollusca, London 1926.Google Scholar
8.Lawson, A. C. “Report on the Geology of the Rainy Lake Region,” Geol. Surv. Canada, 1888.Google Scholar
9.Leverett, Frank, “Quaternary Geology of Minnesota and Parts of Adjoining States.” United States Dept. Interior. Geol. Surv. Prof. Paper 161. 1932.Google Scholar
10.Mozley, Alan, “Post Glacial Fossil Molluscs from a Delta Deposit near Winnipeg, Manitoba,” Geol. Mag., LXV 1928, 267–270.CrossRefGoogle Scholar
11.Mozley, Alan, “A new Interglacial Pulmonate Mollusc from the Province of Saskatchewan,” Amer. Mid. Nat., xiii 1932, 236–240.CrossRefGoogle Scholar
12.Russell, L. S. “Pleistocene and Post-Pleistocene Molluscan Faunas of Southern Saskatchewan,” Canadian Field Nat., xlviii 1934, 34–7.Google Scholar
13.Upham, Warren, “The Glacial Lake Agassiz,” U.S. Geol. Surv. Monograph xxv, 1896, 1–658.Google Scholar