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A fossil record of cell division

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Kevin Robinson

Using thin section petrology, scanning electron microscopy, transmission electron microscopy and x-ray CT, researchers have uncovered fossilized evidence of cell division. The cells that they found have some similarities to present-day metazoans, which include sea sponges. The researchers, led by Whitey Hagadorn of Amherst College in Massachusetts, studied 162 fossils of Parapandorina raphospissa embryos, a sea animal from the Ediacaran Period, the last geological period of the Neoproterozoic Era, which occurred 635 million to 551 million years ago. The fossils were found in the...Read full article

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    Published: November 2006
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