Re: Tyrant stuff (no longer ranting) (was RE: Rant (was RE: Details on SVP 20...

["Brian Lauret" <zthemanvirus@hotmail.com>]

> From: "Tim Donovan" <msdonovan66@hotmail.com>
> Reply-To: msdonovan66@hotmail.com
> To: andyfarke@hotmail.com, dinosaur@usc.edu
> Subject: Re: Tyrant stuff (no longer ranting) (was RE: Rant (was RE: 
> Details on SVP 20...
> Date: Sun, 10 Nov 2002 06:10:51 -0500
>
>
> > From: "Andrew A. Farke" <andyfarke@hotmail.com>
> > Reply-To: andyfarke@hotmail.com
> > To: <dinosaur@usc.edu>
> > Subject: Re: Tyrant stuff (no longer ranting) (was RE: Rant (was RE: 
> > Details on SVP 20...
> > Date: Sat, 9 Nov 2002 13:39:15 -0700
> >
> > > If it was so easy to get across, why are there no ceratopine or
> > > centrosaurine ceratopians in Asia (for example)? Easy for one means 
> > easy
> > for
> > > all.
> >
> > I'm undecided on the on-list land bridge discussion, but I will throw in 
> > the
> > point that just because a land bridge exists doesn't mean that a species
> > will necessarily utilize it. If a species does utilize it, this doesn't 
> > mean
> > that it will become firmly established (and hence fossilized). Habitat
> > differences between the two continents may have rendered it difficult for
> > ceratopsids to become established in Asia
>
>   This is the best explanation IMHO. Note that taxa which successfully 
> emigrated were broad snouted e.g. ankylosaurids, hadrosaurs, whereas narrow 
> snouted, more selective feeders such as nodosaurs and big ceratopsids may 
> not have found enough of their preferred vegetation to survive in Asia, 
> where the climate was generally more arid.
What happened to Turanoceratops?This had been called a centrosaurine 
ceratopid wasn't it?I'm glad i used the good name,i usually confuse it with 
Udanoceratops...

Brian

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