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RE: Speaking of the latest Cretaceous...
> From: owner-DINOSAUR@usc.edu [mailto:owner-DINOSAUR@usc.edu]
> On Behalf Of Brandon Pilcher
>
>
> Does anyone know of the status of the Western Interior Sea
> during this time period? I remember encountering more than
> once source (for example, http://www.scn.org/~bh162/maas2.gif
> ) suggesting it had receded to the point where it no longer
> split North America in two.
Three, actually (west, northcentral Canada, eastern & southeastern North
America). And yes, the Maastrichtian Regression and local tectonics removed
most of the barriers by the end of the Maa.
> If this is the case, would it be
> theoretically possible for western North American dinosaurs
> to mingle with dinosaurs from the eastern side of the continent?
Yes, but no evidence of that yes.
Thomas R. Holtz, Jr.
Email: tholtz@umd.edu Phone: 301-405-4084
Office: Centreville 1216
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
http://www.geol.umd.edu/~tholtz/
Fax: 301-314-9661
Faculty Director, Earth, Life & Time Program, College Park Scholars
http://www.geol.umd.edu/~jmerck/eltsite/
Fax: 301-405-0796
Mailing Address: Thomas R. Holtz, Jr.
Department of Geology
Building 237, Room 1117
University of Maryland
College Park, MD 20742 USA
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