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What does the Great Barrier Reef tell us about both Evolution and the Age of things?

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Author Topic:   What does the Great Barrier Reef tell us about both Evolution and the Age of things?
JonF
Member (Idle past 197 days)
Posts: 6174
Joined: 06-23-2003

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Message 22 of 30 (106465)
05-07-2004 8:37 PM 		Reply to: Message 17 by AdminNosy
05-07-2004 7:57 PM

Re: Get a grip
whatever, so far there is only one vote and it's not on your side.
Thumbs down.
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 Message 17 by AdminNosy, posted 05-07-2004 7:57 PM AdminNosy has not replied
  
JonF
Member (Idle past 197 days)
Posts: 6174
Joined: 06-23-2003

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Message 23 of 30 (106466)
05-07-2004 8:43 PM 		Reply to: Message 20 by jar
05-07-2004 8:15 PM

Re: One thing I wonder is
if a core was taken all the way back to the layer from 2 million years ago, would it show the evolution of the corals from the beginning to now?
​
I don't think it would show a lot. What really shows an interesting change is the Permian-Triassic extinction, when essentially all the corals disappeared, only to be replaced later by totally different types that filled the same ecological niches. But that's 200-ish million years ago.
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