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Re: Tyrannosaur landscapes
In reply to Jeff Martz; Don't misunderstand, Kirk Johnson's word is law as
far as I'm concerned. I know how hard he's been working on these problems
for many years now. I've seen the material he's collected and have been in
the field with him. on a seminar with the Pioneer Trails Museum in Bowman,
N.D. Has anyone worked harder? I just wanted to point out a possible bias
that may occur from channel and floodplain deposits. Keith Rigby had a paper
about this in the second volume of the Czerkas' _Dinosaurs, Past and
Present_. Greg Retallack has done work on Hell Creek soils that, I believe,
show a canopied forest.
I have a difficult time imagining huge tyrannosaurs and triceratopses
(triceratopi?) romping around in a dense rain forest. If I remember
correctly, Kirk felt that the forest was fairly open. Still farther from the
great rivers the habitat may have been very different, hence the importance
of pollen and spores.