News From the Field
Two Explosive Evolutionary Events Shaped Early History of Multicellular Life
January 4, 2008
Scientists have known for some time that most major groups of complex animals appeared in fossil records 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.
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