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Re: giant toothed bird-species or genus that lasts 50 million yrs?



Depends on the group. Many modern bird groups have been around for
that long or longer. The oldest fossil penguin, _Waimanu_, for
example, is 60Ma old. There are remains from the Maastrichtian of
Antarctica which apparently resemble modern, flightless loons pretty
closely (_Polarornis_), though this identification is more
controversial.

Matt

On Thu, Oct 27, 2011 at 8:51 AM, Brian Hathaway <hammeris1@att.net> wrote:
> This seems to be an awfully long time for a single (or closely related)group 
> of
> a species to last (to me)?
> Is there anything in the non-avian dino record that is equivalent?
>
> http://blogs.thatpetplace.com/thatbirdblog/2010/10/07/breaking-news-prehistoric-bird’s-wingspan-is-largest-ever-recorded/
>
>
> http://www.abc.net.au/science/articles/2010/09/16/3013480.htm
>