1982. 2002-06-01T04:00:00Z. 2023-05-25T03:01:23Z. Geological Survey (U.S.). The Survey. English. text. Public. California. Cenozoic.
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1988. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. Missouri. Paleozoic, Mesozoic, and Cenozoic.
1959. 2015-05-26T17:53:22Z. 2015-06-09T22:07:14Z. Craig, B. G. Geological Survey of Canada. English. cartographic image. Public. Saskatchewan and Battleford Region. Cenozoic and From 65 million years ago.
1963. 2012-11-15T19:20:06Z. 2012-11-15T19:20:06Z. Fyles, J. G. (John Gladstone), 1923-. Geological Survey of Canada. English. Public. British Columbia and Parksville Region. Cenozoic.
1966. 2007-04-20T13:49:12Z. 2015-07-14T22:23:45Z. McDonald, Barrie C. Geological Survey of Canada. English&French. Public. Québec (Province) and Richmond Region. Cenozoic.