No exit to the Artic basin? How do you know that? The
channel between Norway and Greenland was open (passive
margin) according to the map I'm looking at...
<http://www.scotese.com/cretaceo.htm>
According to that map, this was an epicontinental sea, except for a narrow
crack in its middle.
Is there actually any evidence for this epicontinental sea? *Normapolles* is
found both in eastern North America and in Europe but not in Asiamerica...