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RE: Penguins And Rexes
To change the subject slightly:
Ambush predation implies the ability to remain
motionless for long periods of time-- could T rex
squat in tripod style, weight distributed evenly
between legs and tail?
Has anyone estimated the maximum slope a large
sauropod could be reasonably expected to negotiate?
And last but not least-- "could bigass titanosaurs lie
on their sides?"
--- "Thomas R. Holtz, Jr." <tholtz@geol.umd.edu>
wrote:
> > From: owner-dinosaur@usc.edu
> [mailto:owner-dinosaur@usc.edu]On Behalf Of
> > Richard W. Travsky
>
> [snip]
>
> > > repeated snout infection (which could be from
> feeding or fighting
> > > injuries too) or a very fortuitous trace fossil
> set. Interesting
> > > concept though. Perhaps they used what ever
> works much like us in a bad
> > > balance situation.
> >
> > Anyone with a rex simulation handy?
> >
>
> Yep.
>
> Kent Stevens.
>
> This was, indeed, his Black Hills presentation!
> Stevens, K.A., E.D. Wills, P.L. Larson & A.
> Anderson. 2005. Rex, sit: modeling tyrannosaurid
> postures. (second title: Making a
> Scanned Stan Stand). "100 Years of Tyrannosaurus
> rex" A symposium.
>
> Kent and his colleagues used a scan of Stan in
> DinoMorph, and showed several alternative models of
> how it could rise. There aren't
> any real problems, and there are a number of
> solutions.
>
> Why people don't ask the questions "could bigass
> titanosaurs lie on their sides?" or "what happens
> when a Brachiosaurus trips?" I
> don't know.
>
> Thomas R. Holtz, Jr.
> Vertebrate Paleontologist
> Department of Geology Director, Earth, Life & Time
> Program
> University of Maryland College Park Scholars
> Mailing Address:
> Building 237, Room 1117
> College Park, MD 20742
>
> http://www.geol.umd.edu/~tholtz/
> http://www.geol.umd.edu/~jmerck/eltsite
> Phone: 301-405-4084 Email: tholtz@geol.umd.edu
> Fax (Geol): 301-314-9661 Fax (CPS-ELT):
> 301-405-0796
>
>