Image:Cretaceous seaway.png

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Map of North America highlighting the shallow inland seaways present during the mid- Cretaceous period. By William A. Cobban and Kevin C. McKinney, USGS. (Image has been slightly modified by uploader to remove "CO" state designation.)

Public domain This image is in the public domain because it contains materials that originally came from the United States Geological Survey, an agency of the United States Department of Interior. For more information, see the official USGS copyright policy

File history

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Date/Time Dimensions User Comment
current 05:00, 4 March 2005 250×301 (101 KB) Hadal (from the USGS)
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