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10-Jan-2008

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Two Explosive Evolutionary Events Shaped Early History Of Multicellular Life,
ScienceDaily
 









Excerpt: Scientists have known for some time that most major groups of complex
animals appeared in the fossils record during the Cambrian Explosion, a
seemingly rapid evolutionary event that occurred 542 million years ago. Now
Virginia Tech paleontologists, using rigorous analytical methods, have
identified another explosive evolutionary event that occurred about 33 million
years earlier among macroscopic life forms unrelated to the Cambrian animals.
They dubbed this earlier event the "Avalon Explosion." The discovery suggests
that more than one explosive evolutionary event may have taken place during the
early evolution of animals. (...)
Source: Two Explosive Evolutionary Events Shaped Early History Of Multicellular
Life[ http://www.sciencedaily.com/releases/2008/01/080103144451.htm ],
ScienceDaily, 2008/01/04
Contributed by Atin Das - dasatinyahoo.co.in

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