News tagged with permian extinction
Global extinction: Gradual doom is just as bad as abrupt
A painstakingly detailed investigation shows that mass extinctions need not be sudden events. The deadliest mass extinction of all took a long time to kill 90 percent of Earth's marine life, and it killed ...
Space & Earth / Earth Sciences
Feb 03, 2012 |
4.2 / 5 (20) |
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Could Siberian volcanism have caused the Earth's largest extinction event?
Around 250 million years ago, at the end of the Permian geologic period, there was a mass extinction so severe that it remains the most traumatic known species die-off in Earth's history. Although the cause ...
Space & Earth / Earth Sciences
Jan 09, 2012 |
4.7 / 5 (3) |
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Researchers pinpoint date and rate of Earth's most extreme extinction
It's well known that Earth's most severe mass extinction occurred about 250 million years ago. What's not well known is the specific time when the extinctions occurred. A team of researchers from North America ...
Space & Earth / Earth Sciences
Nov 17, 2011 |
5 / 5 (6) |
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Land animals, ecosystems walloped after Permian dieoff
The cataclysmic events that marked the end of the Permian Period some 252 million years ago were a watershed moment in the history of life on Earth. As much as 90 percent of ocean organisms were extinguished, ...
Space & Earth / Earth Sciences
Oct 26, 2011 |
5 / 5 (6) |
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New technique unlocks secrets of ancient ocean
Earth's largest mass extinction event, the end-Permian mass extinction, occurred some 252 million years ago. An estimated 90 percent of Earth's marine life was eradicated. To better understand the cause of ...
Space & Earth / Earth Sciences
Oct 11, 2011 |
4.8 / 5 (10) |
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China fossil shows bird, crocodile family trees split earlier than thought
A fossil unearthed in China in the 1970s of a creature that died about 247 million years ago, originally thought to be a distant relative of both birds and crocodiles, turns out to have come from the crocodile ...
Other Sciences / Archaeology & Fossils
May 18, 2011 |
4.8 / 5 (4) |
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Reptile 'cousins' shed new light on end-Permian extinction
(PhysOrg.com) -- An international team of researchers studied the parareptiles, a diverse group of bizarre-looking terrestrial vertebrates which varied in shape and size. Some were small, slender, agile and ...
Other Sciences / Archaeology & Fossils
May 05, 2011 |
5 / 5 (1) |
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Researchers find smoking gun of world's biggest extinction
About 250 million years about 95 per cent of life was wiped out in the sea and 70 per cent on land. Researchers at the University of Calgary believe they have discovered evidence to support massive volcanic ...
Space & Earth / Earth Sciences
Jan 23, 2011 |
4.7 / 5 (38) |
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The day the algae died
The P-T mass extinction may have been instigated by populations of algae dying. According to one group of scientists, this die-off of large numbers of relatively simple life forms caused a crash in the ocean's ...
Space & Earth / Earth Sciences
Dec 14, 2010 |
4.1 / 5 (13) |
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Mass extinctions: 'giant' fossils are revolutionizing current thinking
(PhysOrg.com) -- Large-sized gastropods (up to 7 cm) dating from only 1 million years after the greatest mass extinction of all time, the Permian-Triassic extinction, have been discovered by an international ...
Space & Earth / Earth Sciences
Feb 10, 2010 |
4.3 / 5 (9) |
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Antarctica served as climatic refuge in Earth's greatest extinction event
A new fossil species suggests that some land animals may have survived the end-Permian extinction by living in cooler climates in Antarctica. Researchers have identified a distant relative of mammals that apparently survived ...
Space & Earth / Earth Sciences
Dec 02, 2009 |
4.6 / 5 (11) |
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Reptiles stood upright after mass extinction
(PhysOrg.com) -- Reptiles changed their walking posture from sprawling to upright immediately after the end-Permian mass extinction, the biggest crisis in the history of life that occurred some 250 million ...
Other Sciences / Archaeology & Fossils
Sep 15, 2009 |
4.2 / 5 (10) |
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The flash recovery of ammonoids after the most massive extinction of all time
After the End-Permian extinction 252.6 million years ago, ammonoids diversified and recovered 10 to 30 times faster than previous estimates.
Other Sciences / Archaeology & Fossils
Sep 02, 2009 |
3.2 / 5 (5) |
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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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