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