Re: Dinosaur National Monument

[Mark Hallett <marksabercat@yahoo.com>]

Hi Dan, Was this research published, and if so can I get a copy from the two 
authors? Thanks for correcting me re: the gallery forest habitat! --Mark


--- On Sat, 11/29/08, Dan Chure <danchure@easilink.com> wrote:

> From: Dan Chure <danchure@easilink.com>
> Subject: Re: Dinosaur National Monument
> To: marksabercat@yahoo.com
> Cc: "Tom Johnson" <tdjohnson51@msn.com>, dinosaur@usc.edu
> Date: Saturday, November 29, 2008, 3:06 PM
> Work by USGS geologists Pete Petersen and Christine Turner
> in the late 1990s determined that the bones in the Carnegie
> Quarry were deposited on the channel floor in the deepest
> part of the channel and not on a point bar.  Preliminary
> papers on the palynology by USGS paleontologist Ron Litwin
> claim some 250 species of plants are present in the
> Morrison, although that is for the entire formation and not
> DNM.  All pollen sites are dominated by fern spores,
> regardless of the geographic or stratigraphic location of
> the sample. A gallery forest seems reasonable in or near the
> Carnegie Quarry as there are coalified logs, branches, and
> lots of coalified plant fragments in the present quarry
> face. The phenomenal abundance of unionoid clams in the
> quarry indicates that it was a perennial river and with low
> suspended sediment load most of the year.
> 
> Dan
> 
> Mark Hallett wrote:
> > Hi Tom, Thanks so much for the comment on my art,
> which at the time I did it for the National Park
> Service's Guide to the Dinosaur National Monument (1978)
> was the most current idea of what the DNM area looked like;
> several years ago I believe there were some stratographic
> and palynological studies that show a different
> interpretation (possibly more semiarid, and less
> tropical-looking "gallery forest", that may have
> been done by Forster or someone else. The original art was
> never produced a a poster, but I'd sure be interested in
> creating a newer and more accurate version if someone (or
> institution) wanted to do this. I'll be happy to send
> you digitals of the dino work I offer for sale, and if
> you're interested just let me know. Happy Holidays, Mark
>    
> > 
> > --- On Thu, 11/27/08, Tom Johnson
> <tdjohnson51@msn.com> wrote:
> > 
> >   
> >> From: Tom Johnson <tdjohnson51@msn.com>
> >> Subject: Dinosaur National Monument
> >> To: marksabercat@yahoo.com
> >> Cc: tdjohnson51@msn.com
> >> Date: Thursday, November 27, 2008, 10:27 AM
> >> Mark, Happy Thanksgiving!
> >>  There is a wonderful painting you did of a
> panoramic view
> >> of the Jurassic landscape around Dinosaur National
> Monument,
> >> which I have only seen in Dinosaurs Past &
> Present.  I'd
> >> love to find this in the form of a print or
> poster, but have
> >> been unable to locate it on the web.  Where would
> I look to
> >> find reproductions of your work?
> >>  Best wishes,
> >>  Tom Johnson
> >> Loveland, Colorado
> >>     
> > 
> > 
> >      
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