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Geobiologists propose that the earliest complex organisms fed by absorbing ocean buffet
Date:8/19/2009

en absorbed via osmosis through Ediacaran "skin" due to the high surface-area to volume ratios."

The PNAS article concludes that today "giant sulfur bacteria, such as Thiomargarita, thrive along the coastal area of Namibia, where constant upwelling allows for greater access to (dissolved organic carbon) and nutrients. Such nutrient-rich areas may be modern-day analogs to Ediacaran deep oceans ... suggesting that it may be more than coincidental that the earliest rangeomorphs occurred in (dissolved organic carbon)-rich deep waters."


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Contact: Susan Trulove
STrulove@vt.edu
540-231-5646
Virginia Tech
Source:Eurekalert

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