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RE: More tyrant Q & A's
> -----Original Message-----
> From: Thomas R. Holtz, Jr. [SMTP:firstname.lastname@example.org]
> Sent: Wednesday, December 09, 1998 8:10 AM
> To: email@example.com
> Cc: Stewart, Dwight
> Subject: More tyrant Q & A's
> Here's more on tyrannosaur questions.
> Dwight Stewart writes:
> >How strong is the evidence for dimorphism in Tyrannosaurus rex?
> Dwight also wrote:
> >To me this would tend to
> >indicate a potential
> > for "social interaction" among Tyrannosaurs that might fit more of a
> >hyiena model
> > than an African lion model.
> I don't see how that would follow, especially as how hyenas (or spotted
> hyenas, at least) have a fairly peculiar social organization, at least (if
> not more) complex than lions.
> Thomas R. Holtz, Jr.
> Vertebrate Paleontologist Webpage: http://www.geol.umd.edu
> Dept. of Geology Email:firstname.lastname@example.org
> University of Maryland Phone:301-405-4084
> College Park, MD 20742 Fax: 301-314-9661
I shouldn't have used mammals as an example. I thought about
that later. :-) But, aren't male crocodiles larger than females? I know
there are birds in which the females are larger. My point was that I have
heard the African lion analogy used a few times to compare Tyrannosaurs &
THAT analogy seems wholly untenable. African male lions outweigh the
females by ~ 20-30%. So, if Tyrannosaurus rex males were smaller (& I think
the evidence supports this) the "lion strategy"
wouldn't seem to hold. Or perhaps T.rex had no permanent social
interaction with its own genus except at mating time???