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Re: Why did small dinos become extinct?



--- Dann Pigdon <dannj@alphalink.com.au> wrote:


> No doubt there was an initial glut of carcasses for
> crocs and small 
> theropods to scavenge from. Once they were gone
> (either eaten or rotted 
> away), the lower metabolism of crocs may have given
> them an advantage, since 
> they could have gone longer between meals than a
> high-performance theropod. 
> 
+++++++++++++++++++++++++++++++++++++++++++++++

If, indeed, there was a difference in metabolism in
the two groups. 

The K/T extinction seems to have been more biased
ecologically, than physiologically.

Jason

"I am impressed by the fact that we know less about many modern [reptile] types 
than we do of many fossil groups." - Alfred S. Romer


      
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