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October 2008 GEOLOGY and GSA TODAY media highlights
Date:9/25/2008

Boulder, CO, USA - GEOLOGY topics include the fossil conservation of organic tissues, including guts, gills, muscles, and eyes, as carbon; an habitable zone model for recovery after major extinction; the complex response of biodiversity to both climate and tectonics; the "celebrated weirdness of Ediacaran fossils" preserved in fine-grained carbonate sediments; and a powerful new way to concentrate gold. GSA TODAY compares present microbially induced sediment structures to microbial communities preserved in Earth history some three billion years ago.

Highlights are provided below. Representatives of the media may obtain complementary copies of articles by contacting Christa Stratton at cstratton@geosociety.org. Please discuss articles of interest with the authors before publishing stories on their work, and please make reference to GEOLOGY or GSA TODAY in articles published. Contact Christa Stratton for additional information or assistance.

Non-media requests for articles may be directed to GSA Sales and Service, gsaservice@geosociety.org.

Cambrian Burgess Shaletype deposits share a common mode of fossilization
Robert R. Gaines et al., Geology Department, Pomona College, Claremont, California 91711, USA. Pages 755-758. NSF funding received.

Evidence for the proliferation of animals and the rise of complex ecosystems during the Cambrian period are best known from the Burgess Shale and a handful of other deposits like it. Whereas the typical fossil record is comprised of shells, teeth, bone, and other mineralized skeletal parts, Burgess Shaletype deposits preserve soft tissues, including guts, gills, muscles, appendages, and eyes, and offer an unparalleled record of early animal life. Significant disagreement in the paleontological community has persisted over exactly how these fos
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Contact: Christa Stratton
cstratton@geosociety.org
303-357-1093
Geological Society of America
Source:Eurekalert

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