PZ Myers posted Entry 2663 on October 24, 2006 08:24 AM.
Trackback URL: http://www.pandasthumb.org/cgi-bin/mt/mt-tb.fcgi/2656

fossil_embryos_tease.jpg

There is a treasure trove in China: the well-preserved phosphatized embryos of the Doushantuo formation, a sampling of the developmental events in ancient metazoans between 551 and 635 million years ago. These are splendid specimens that give us a peek at some awesomely fragile organisms, and modern technology helps by giving us new tools, like x-ray computed tomography (CT), scanning electron microscopy (SEM), thin-section petrography, synchrotron X-ray tomographic microscopy (SRXTM), and computer-aided visualization, that allow us to dig into the fine detail inside these delicate specimens and display and manipulate the data. A new paper in Science describes a survey of a large collection of these embryos, probed with these new techniques, and rendered for our viewing pleasure…that is, we've got pretty pictures!

Continue reading "Dissecting embryos from half a billion years ago" (on Pharyngula)

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Comment #141404

Posted by Corkscrew on October 24, 2006 10:10 AM (e)

Whatever you do, don’t tell the anti-abortionists about this…

Comment #141588

Posted by Michael Suttkus, II on October 26, 2006 8:38 AM (e)

They’re not human embryos. Non-humans don’t matter.