National Geologic Map Database
General Information
- Title: A time-scale for the Late Cretaceous of the Western Interior of North America
- Author(s): Obradovich, J.D., and Cobban, W.A.
- Publishing Organization: Geological Association of Canada
- Series and Number: Special Paper 13 [p. 31-54]
- Larger Work: Caldwell, W.G., ed., The Cretaceous System in the Western Interior of North America
- Publication Date: 1975
- Cross Section: None
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