News tagged with rock record
Geologic Findings Undermine Theories of Permian Mass Extinction Timing
(PhysOrg.com) -- New scientific findings by geologist Robert Gastaldo of Colby College in Waterville, Maine, and colleagues call into question popular theories about the largest mass extinction in Earth's ...
Space & Earth / Earth Sciences
Mar 02, 2009 |
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New bacterium forms intracellular minerals
A new species of photosynthetic bacterium has come to light: it is able to control the formation of minerals (calcium, magnesium, barium and strontium carbonates) within its own organism. Published in Science on Apr ...
May 11, 2012 |
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Discovery rekindles debate on origins of multi-cellular life
A recent discovery by a University of Florida geologist may lend support to the theory that one of the defining moments of evolution may not have occurred as currently thought.
Dec 22, 2010 |
4.3 / 5 (13) |
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Researchers discover ancient urban center in Mexico
Colorado researchers have discovered and partially mapped a major urban center once occupied by the Purepecha of Mexico, a little-known people who fought the better-known Aztecs to a standstill and who controlled much of ...
Other Sciences / Archaeology & Fossils
Apr 14, 2010 |
5 / 5 (4) |
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Bias in the rock record?
(PhysOrg.com) -- The fossil record is known to be biased by the unevenness of geographical and stratigraphical sampling, and the lack of exposed rocks containing fossils. In a recent Perspective in Science [2 Jan ...
Space & Earth / Earth Sciences
Jan 14, 2009 |
4.1 / 5 (8) |
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New study finds link between marine algae and whale diversity over time
A new paper by researchers at George Mason University and the University of Otago in New Zealand shows a strong link between the diversity of organisms at the bottom of the food chain and the diversity of mammals at the top.
Feb 19, 2010 |
4.5 / 5 (2) |
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The adherence mechanism of red algae to the rocks is discovered
Geologists of the University of Granada, Spain, have described for the first time ever the biological mechanism that explains how calcareous red algae grow on rocky substrates.
Aug 03, 2009 |
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