A line of mini-sharks thought to have perished in Earth's "Great Dying" event some 250 million years ago, in fact lived another 120 million years, said researchers Tuesday who found samples of their miniscule fossil teeth.
Archaeology
Oct 29, 2013
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The fossilised remains of a reptile closely related to lizards are the oldest yet to be discovered. Two new fossil jaws discovered in Vellberg, Germany provide the first direct evidence that the ancestors of lizards, snakes ...
Archaeology
Sep 24, 2013
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The ancient closest relatives of mammals – the cynodont therapsids - not only survived the greatest mass extinction of all time, 252 million years ago, but thrived in the aftermath, according to new research published today.
Archaeology
Aug 28, 2013
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(Phys.org) —It's well known that the dinosaurs were wiped out 66 million years ago when a meteor hit what is now southern Mexico but evidence is accumulating that the biggest extinction of all, 252.3m years ago, at the ...
Earth Sciences
Aug 1, 2013
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Through careful study of an ancient ancestor of modern turtles, researchers now have a clearer picture of how the turtles' most unusual shell came to be. The findings, reported on May 30 in Current Biology, help to fill a ...
Evolution
May 30, 2013
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Many scientists have thought that dinosaur predecessors missed the race to fill habitats emptied when nine out of 10 species disappeared during the Earth's largest mass extinction, approximately 252 million years ago. The ...
Archaeology
Apr 29, 2013
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Hydrogen sulfide, the pungent stuff often referred to as sewer gas, is a deadly substance implicated in several mass extinctions, including one at the end of the Permian period 251 million years ago that wiped out more than ...
Plants & Animals
Apr 17, 2013
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An international team of scientists has described a fossil marine predator measuring 8.6 meters in length (about 28 feet) recovered from the Nevada desert in 2010 as representing the first top predator in marine food chains ...
Archaeology
Jan 7, 2013
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Scientists have discovered why the 'broken world' following the worst extinction of all time lasted so long – it was simply too hot to survive.
Earth Sciences
Oct 18, 2012
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(Phys.org)—University of Cincinnati professor Thomas J. Algeo, working with a team of Chinese scientists, has established a tight link between repeated episodes of volcanic activity and environmental degradation leading ...
Earth Sciences
Oct 16, 2012
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