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Old 10-July-2009, 06:30 PM
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cran cran is offline
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Quote:
Originally Posted by korjik View Post
That is wierd. I was under the impression that plants first started coming onto land in the Silurian, I think. I would think that if there was that much plant life on the land, it should have been fairly obvious
Not weird - the Arizona SU and UC Riverside scientists have just independently discovered Neoproterozoic stromatolitic algae ...

Quote:
Originally Posted by OP Quote
... the Cambrian explosion of life, roughly 540 million years ago, when complex, multi-cellular life burst out all over the planet...
... but they still haven't heard of Ediacaran fauna ...

Quote:
Originally Posted by OP Quote
... This period, roughly 700 million years ago virtually set the table for the later explosion of life through the development of early soil that sequestered carbon, led to the build up of oxygen and allowed higher life forms to evolve...
... the Archaean-Proterozoic transition seems to have escaped them, too ...
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