On Sat, Jul 29, 2006 at 12:15:13PM +1000, Paul & Irene Osborn wrote:
> Birds may have been around longer than we think, even before the K/T
> (Cretaceous/Tertiary) boundary.
By "birds" I assume you mean modern birds (Neornithes); ancient birds
like Archaeopteryx have been around since the late Jurassic.
This site has a reconstruction of the early penguin along with a
phylogeny diagram: http://scienceblogs.com/pharyngula/2006/03/waimanu.php
The diagram includes Vegavis, an early Anseriformes (waterfowl) from
known from a partial fossil from Antarctica, which is placed before
the K/T boundary. http://www.digimorph.org/specimens/Vegavis_iaai/
(The DigiMorph website, http://www.digimorph.org, is well worth a
look - spectacular 3D images of biological specimens, modern and
fossil.)
--
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Paul Taylor Veni, vidi, tici -
I came, I saw, I ticked.
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