[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: The Western Interior Seaway (and computers)
Paleogeographers are pretty secure on this one. I do not know the details
about this, but first order approximation would be that
they have Cretaceous marine sediments from that area...
On the other hand, paleogeographers do happily fill in gaps. Many maps,
including those at scotese.com, show South America and Antarctica breaking
apart in the LK -- while biogeographic and climatological evidence says the
break happened around the Eocene-Oligocene boundary. I guess there are just
no Cretaceous sediments from Cape Hoorn.
Contrary to my expectations, however, there are Permian and/or Triassic (I
forgot) marine sediments from eastern Greenland.