Re: Stratigraphy, biogeography & cladograms

["John V Jackson" <jjackson@interalpha.co.uk>]

--Original Message-- From: Jeffrey Martz <jeffmartz@earthlink.net>:
Wednesday, January 20, 1999 03:14 PM



>
>
>Betty wrote:
>
><It seems to me that (modern birds) may simply be all that's left of a
>major group of animals (major prebird creature group) that extended
>from the early Jurassic right on into the late Cretaceous.>
>
>J. Jackson wrote...
>< That's what Sankar Chatterjee proposed, I believe.

I didn't write the line above - Jaime did.


>
>     That's what John Ostrom, Kevin Padian, Alan Fedduccia, Larry Martin,
and Alick Walker suggested too.

And if they *all* think feathered flight evolved in multiple sublines
simultaneously, then God help palaeontology.



JJ