Re: Selective Extinction

["Peter Von Sholly" <vonrex@gte.net>]

----------
> From: Peter Von Sholly <vonrex@gte.net>
> To: vonrex@gte.net; Bettyc@flying-goat.com; dinosaur@usc.edu
> Subject: Re: Selective Extinction
> Date: Monday, October 27, 1997 1:21 PM
> 
> 
> 
> ----------
> > From: Peter Von Sholly <vonrex@gte.net>
> > To:; dinosaur@usc.edu
> > Subject: Re: Selective Extinction
> > Date: Monday, October 27, 1997 1:19 PM
> > 
> > Yes, pterosaurs perished (somewhere along the way anyhow).  Maybe they
> > weren't as adept at flying as birds.  And as somebody said, "what about
> the
> > mosasaurs and sharks?"  (as in how did my question explain their
> > extinctions) I must confess that I thought sharks survived!  You learn
> > something new all the time. I suppose a big impact (with intense heat)
> > would have  tremendous effects on the oceans- especially if it hit in
the
> > water.  Maybe the surface water got super hot, devastating air
breathing
> > aquatics, maybe gigundous waves caused havoc-  yet as I thought I said,
> my
> > question did not pretend to answer the global extinction question.  I
> know
> > dinosaurs were on the wane- I am aware of gradualist ideas on the
> subject. 
> > And it seems there may have been many impacts, perhaps over a long
time. 
> I
> > merely wondered if certain sized and heighted creatures were more
> > vulnerable to a shock wave than creatures who could lie low, or soar
> above.
> >  In certain isolated scenarios, at least,  it seems they may have been.
> > ----------
> > > From: Bettyc <Bettyc@flyinggoat.com>
> > > To: dinosaur@usc.edu
> > > Subject: Re: Selective Extinction
> > > Date: Monday, October 27, 1997 10:56 AM
> > > 
> > > 
> > > birds, of course, survived, whereas pterasauroids did not so if you
can
> > > perhaps explain why?
> > > Wehn Mt. St. Helens went off, birds that flew away survived, but
still
> > > had to deal with the ash that covered everything afterwards to search
> > > for food and water.
> > > -- 
> > >            Betty Cunningham  
> > >