[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Jurassic Park
----Original Message Follows----
Date: Sat, 26 Sep 1998 20:53:25 -0700
Reply-To: <vonrex@gte.net>
From: "Peter Von Sholly" <vonrex@gte.net>
To: <dinosaur@usc.edu>
Subject: Re: Jurassic Park
----------
> From: TWILLIAMS@canr1.cag.uconn.edu
> To: tkeese1@gl.umbc.edu; dinosaur@usc.edu
> Subject: Re: Jurassic Park
> Date: Saturday, September 26, 1998 2:57 PM
>
> >
> > It's *real* simple: _Sinosauropteryx_, a compsognathid, had
hair-like
> > "proto-feathers". Birds have feathers. In pretty much every
phylogeny
> > published recently, dromaeosaurids share more recent ancestry with
birds
> > than with compsognathids.
>
> _Sinosauropteryx_ may have had feathers, but there's no evidence that
> _Compsognathus_ (the only other known compsognathid) did. The
> type specimen of _Compsognathus_ from Bavaria is quite naked, yet
> pterosaurs and _Archaeopteryx_ from the same limestones show at
> least some trace of body covering - fur for pterosaurs, feathers for
> _Archaeopteryx_.
> >
Yes, and further, the point I wished to make is that as far as I know,
it
is not an "almost" certainty that Velociraptors had fur or feathers.
Nor
is it REAL simple to know things like that. If this list fills an
educational role in any way, I think it's wrong to spread speculative
ideas
as though we really know things that we don't know. People could
"learn" a
whole lot of hooey that way.
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com