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Re: Presbyornis, Diatryma, and dromornithids (was Re: The duck that ruled the...



How can be seen the evolution of Diatryma and Dromornithids from
Presbyornis-like birds? From fish-eaters becoming increasingly more
carnivorous until evolving to giant meat-eaters?
If phorusrachoids were common in South America and Antarctica perhaps they
existed in Australia and were overhelmed by thunder birds (thunder gooses?).
And about that Cretaceous French giant bird Gargantuavis? What was it?

Joao SL
Rio
----- Original Message -----
From: <NJPharris@aol.com>
To: <dinosaur@usc.edu>
Sent: Friday, May 26, 2000 7:00 PM
Subject: Re: Presbyornis, Diatryma, and dromornithids (was Re: The duck that
ruled the...


> In a message dated 5/26/2000 2:54:46 PM Pacific Daylight Time,
> twilliams_alpha@hotmail.com writes:
>
> > Interesting point.  My guess is that they probably weren't closely
related,
> >  since _Diatryma_ (a gastornithid, perhaps even the same as _Gastornis_)
> like
> >
> >  brontornithids and phororhacids are usually thought to be related to
> modern
> >  Gruiformes (cranes, rails, coots).
>
> Actually, the most common opinion I've heard bandied about lately is that
the
> gastornithids belong somewhere in the Galloanserae.
>
> Nick P.
>