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Old 02/12/2005, 08:27 AM
MiddletonMark MiddletonMark is offline
troublemaker
 
Join Date: Apr 2003
Location: Madison, WI
Posts: 13,532
Quote:
Originally posted by dinoman
[B4my in a geological time scale is mearly a blink of an eye. If I remember right "coral reefs" have been on earth for in the order of 300?-400?my. [/B]
You're right.

The first scleractinian corals [stony/skeleton-building corals] comes from the Triassic [250-210 Million Years Ago]. While there have been a number of extinction events/etc in the meantime ... things like Acropora [as a family] have been around since the Jurassic [210-140 mya]. Very likely they may have looked different and been totally different species than anything we know - yet their roots are pretty deep.

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It's an interesting story, I'll be keeping an eye out for more on it.

Thanks for posting it