Re: [dinosaur] Could feathered dinosaurs survive post impact freeze?

[Dann Pigdon <dannj@alphalink.com.au>]

On Mon, Jan 16th, 2017 at 7:35 PM, Poekilopleuron <dinosaurtom2015@seznam.cz> 
wrote:

> Good day,
> 
> a recent study in Geophysical Research Letters postulates at least three 
> years long freezing (post K-Pg impact) temperatures. About 26 degrees drop 
> must have been very harsh for dinosaur populations worldwide, but is it 
> possible that at least feathered, cold-adapted species could survive a few 
> years of this freezing hell?

Cold-adapted species would have already been living in cold areas, which would 
have been made even 
colder as a result of the post-impact conditions (most likely fatally cold). 
Their only hope of survival 
would have been to migrate long distances to areas that were once too warm for 
them, but were 
made 'just right' by the rapid post-impact cooling. Moving long distances 
through icy conditions in a 
short amount of time isn't easy, especially if barriers like mountain ranges or 
large bodies of water 
are in your way. Unless of course you happen to be a member of one of those 
feathered theropod 
lineages capable of moving without having to touch the ground. :-)


-- 
_____________________________________________________________

 Dann Pigdon
 GIS Officer
 Melbourne, Australia
_____________________________________________________________