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>In a message dated 96-02-02 23:03:05 EST, pharrinj@PLU.edu (Nicholas J.
>Pharris) writes:
>>The numerous land connections between Asia and western North America that 
>>occurred near the end of the Cretaceous (Dinogeorge notwithstanding) mean 
>>that they certainly *could* have spread back into Asia.  After all, 
>>protoceratopids of Asian mold show up in latest Cretaceous North 
>>America.  Apparently the big ceratopids *disliked* the dry dune 
>>conditions prevalent in east Asia.
>Which land connections might these be? Can you cite a _geological_ reference
>that describes any overland connection between eastern Asia and western North
>America during the Campanian and Maastrichtian epochs across the Bering

The Alaskan region is a jigsaw puzzle of microterranes.  Whole careers are
devoted to putting this back together.

Anatomical evidence of phylogenetic similarity on both sides of the Bering
Strait is evidence for some land connection.  Plant and microvert
similarities further support this.

Thomas R. Holtz, Jr.
Vertebrate Paleontologist
Dept. of Geology
University of Maryland
College Park, MD  20742
Email:Thomas_R_HOLTZ@umail.umd.edu (th81)
Fax: 301-314-9661