News tagged with precambrian fossils
Delineating primary and secondary organic carbon in neoproterozoic glacial sediments
How do we begin to understand what early life was like on Earth about 700 million years ago as our planet shifted from an oxygen-free and probably ice-covered realm to the oxygen-rich world that we know today?
Space & Earth / Earth Sciences
Jun 16, 2010 |
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Geobiologists propose that the earliest complex organisms fed by absorbing ocean buffet
Research at Virginia Tech has shown that the oldest complex life forms -- living in nutrient-rich oceans more than 540 million years ago - likely fed by osmosis.
Space & Earth / Earth Sciences
Aug 19, 2009 |
4.2 / 5 (6) |
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Search results for precambrian fossils
Researchers resurrect ancient enzymes to reveal conditions of early life on Earth
(PhysOrg.com) -- Scientists from Columbia University, Georgia Institute of Technology and the University of Granada have for the first time reconstructed active enzymes from four-billion-year-old extinct organisms. ...
Apr 12, 2011 |
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Protein adaptation shows that life on early earth lived in a hot, acidic environment
A new study reveals that a group of ancient enzymes adapted to substantial changes in ocean temperature and acidity during the last four billion years, providing evidence that life on Early Earth evolved from ...
Apr 04, 2011 |
4.6 / 5 (9) |
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Scientists decipher 3 billion-year-old genomic fossils
(PhysOrg.com) -- About 580 million years ago, life on Earth began a rapid period of change called the Cambrian Explosion, a period defined by the birth of new life forms over many millions of years that ultimately ...
Dec 19, 2010 |
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Stepping stones through time
Stromatolites are the most ancient fossils on Earth, and these structures built by microbes can still be found forming today in various places around the globe. Although they provide a straight line of life’s ...
Space & Earth / Earth Sciences
Oct 05, 2010 |
5 / 5 (6) |
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A new fossil species found in Spain
In the '80s, Spanish researchers found the first fossils of Cloudina in Spain, a small fossil of tubular appearance and one of the first animals that developed an external skeleton between 550 and 543 millio ...
Other Sciences / Archaeology & Fossils
Mar 25, 2010 |
4.2 / 5 (6) |
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New picture of ancient ocean chemistry argues for chemically layered water
A research team led by biogeochemists at the University of California, Riverside has developed a detailed and dynamic three-dimensional model of Earth's early ocean chemistry that can significantly advance ...
Space & Earth / Earth Sciences
Feb 11, 2010 |
5 / 5 (3) |
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Fossils on the Edge of Forever
Astrobiologists have not yet found alien life on other planets. But the fossil record has evidence of aliens of another sort: the Ediacarans that lived on Earth millions of years ago.
Space & Earth / Earth Sciences
Dec 14, 2009 |
4.9 / 5 (12) |
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Discovery of giant roaming deep sea protist provides new perspective on animal evolution
Groove-like tracks on the ocean floor made by giant deep-sea single-celled organisms could lead to new insights into the evolutionary origin of animals, says biologist Mikhail "Misha" Matz from The University ...
Biology /
Nov 20, 2008 |
4.5 / 5 (28) |
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Earliest Animal Footprints Ever Found -- Discovered in Nevada
The fossilized trail of an aquatic creature suggests that animals walked using legs at least 30 million years earlier than had been thought. The tracks -- two parallel rows of small dots, each about 2 millimeters ...
Other Sciences / Archaeology & Fossils
Oct 05, 2008 |
4.6 / 5 (30) |
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Geologists push back date basins formed, supporting frozen Earth theory
Even in geology, it's not often a date gets revised by 500 million years. But University of Florida geologists say they have found strong evidence that a half-dozen major basins in India were formed a billion ...
Space & Earth / Earth Sciences
Jul 03, 2008 |
4.5 / 5 (25) |
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List of search results for precambrian fossils
