News tagged with mass extinction
Related topics: extinction , dinosaurs , fossil record , climate change , earth
Fossil magnetism helps prove mass extinction theory
(PhysOrg.com) -- Were major extinction events real biological catastrophes or were they merely the result of gaps in the fossil record? Research by a team of geologists from the Universities of Bristol, Plymouth, ...
Space & Earth / Earth Sciences
May 04, 2009 |
4.7 / 5 (12) |
0
Geoscientist offers new evidence that meteorite did not wipe out dinosaurs
A Princeton University geoscientist who has stirred controversy with her studies challenging a popular theory that an asteroid wiped out the dinosaurs has compiled powerful new evidence asserting her position.
Space & Earth / Earth Sciences
May 04, 2009 |
4.6 / 5 (23) |
28
Dinosaurs declined before mass extinction
Dinosaurs were dying out much earlier than the mass extinction event 65 million years ago, Natural History Museum scientists report in the Proceedings of the Royal Society journal today.
Other Sciences / Archaeology & Fossils
Apr 30, 2009 |
4.2 / 5 (15) |
5
New Blow for Dinosaur-Killing Asteroid Theory
(PhysOrg.com) -- The enduringly popular theory that the Chicxulub crater holds the clue to the demise of the dinosaurs, along with some 65 percent of all species 65 million years ago, is challenged in a paper ...
Space & Earth / Earth Sciences
Apr 27, 2009 |
4.5 / 5 (32) |
14
Scientists offer new theory for largest known mass extinction
The largest mass extinction in the history of the earth could have been triggered off by giant salt lakes, whose emissions of halogenated gases changed the atmospheric composition so dramatically that vegetation ...
Space & Earth / Earth Sciences
Mar 30, 2009 |
4 / 5 (21) |
5
DNA duplication: A mechanism for 'survival of the fittest'
VIB researchers connected to Ghent University, Belgium, have discovered that DNA duplications have given plants an evolutionary advantage. This mechanism enabled plants -- in contrast to the dinosaurs -- to survive the Cretaceous-Tertiary ...
Mar 23, 2009 |
4 / 5 (1) |
1
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 |
4.1 / 5 (20) |
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