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More than a meteor likely killed dinosaurs 65 million years ago
10-26-2006 · EurekAlert!Growing evidence shows that the dinosaurs and their contemporaries were not wiped out by the famed Chicxulub meteor impact alone, according to a paleontologist who says multiple meteor impacts, massive volcanism in India and climate changes culminated in the end of the Cretaceous Period.
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- Dinosaur deaths outsourced to India?
10-30-2007 · EurekAlert!
A series of monumental volcanic eruptions in India may have killed the dinosaurs 65 million years ago, not a meteor impact in the Gulf of Mexico. The eruptions, which created the gigantic Deccan Traps lava beds of India, are now the prime suspect in the most famous and persistent paleontological murder mystery, say scientists who have conducted a slew of new investigations honing down eruption timing.
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- Fossils older than dinosaurs reveal pattern of early animal evolution on Earth
07-26-2007 · EurekAlert!
The abundant diversity of characteristics within species likely helped fuel the proliferation and evolution of an odd-looking creature that emerged from an unprecedented explosion of life on Earth more than 500 million years ago. University of Chicago paleontologist Mark Webster reports this finding in the July 27 issue of the journal Science.
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- Rise of dinosaurs in Late Triassic more gradual than once thought
07-19-2007 · EurekAlert!
The ancestors of dinosaurs seemed to disappear before the dinosaurs took over the Earth 200 million years ago, suggesting to many that dinosaurs were so successful that they rapidly out-competed their ancestors and drove them extinct. New fossil finds in New Mexico, however, show that this was not true -- dinosaurs and their ancestors lived side by side for 15-20 million years in the Late Triassic before the dinosaur precursors vanished.
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- Seismic images show dinosaur-killing meteor made bigger splash
01-23-2008 · EurekAlert!
The most detailed 3-D seismic images yet of the Chicxulub impact crater may modify a theory explaining the "KT Extinction Event" that wiped out most life on Earth, including the dinosaurs. According to research appearing in Nature Geosciences, the asteroid landed in deeper water than previously assumed and therefore released about 6.5 times more water vapor into the atmosphere, possibly making it deadlier by altering climate and generating acid rain.
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- Trotting with emus to walk with dinosaurs
10-24-2006 · EurekAlert!
One way to make sense of 165-million-year-old dino tracks may be to hang out with emus, say paleontologists studying thousands of dinosaur footprints at the Red Gulch Dinosaur Tracksite in northern Wyoming. Because they are about the same size, walk on two legs and have similar feet, emus turn out to be the best modern version of the enigmatic reptiles that once trotted along a long-lost coastline in the Middle Jurassic.
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- Bonn scientists simulate dinosaur digestion in the lab
02-06-2008 · EurekAlert!
Scientists from the University of Bonn are researching which plants giant dinosaurs could have lived off more than 100 million years ago. Their results have now been published in the journal Proceedings of the Royal Society B.
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- New meat-eating dinosaur duo from Sahara ate like hyenas, sharks
02-13-2008 · EurekAlert!
Two new 110 million-year-old dinosaurs unearthed in the Sahara Desert highlight the unusual meat-eaters that prowled southern continents during the Cretaceous Period. Named Kryptops and Eocarcharia in a paper appearing this month in the scientific journal Acta Palaeontologica Polonica, the fossils were discovered in 2000 on an expedition led by University of Chicago paleontologist Paul Sereno.
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- Meteor no longer prime suspect in great extinction
10-24-2007 · EurekAlert!
New study looks to the deep ocean for cause of history's biggest extinction (NOT the one that killed the dinosaurs). Taken with other studies, evidence does not support meteor theory for this extinction.
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- Volcanic blast likely killed and preserved juvenile fossil plesiosaur found in Antarctica
12-11-2006 · EurekAlert!
Amid 70-mile-an-hour winds and freezing Antarctic conditions, an American-Argentine research team has recovered the well-preserved fossil skeleton of a juvenile plesiosaur -- a marine reptile that swam the waters of the Southern ocean roughly 70 million years ago.
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- Giant Sauropod dinosaur found in Spain
12-21-2006 · EurekAlert!
Fossils of a giant Sauropod, found in Teruel Spain, reveal that Europe was home to giant dinosaurs in the Late Jurassic period -- about 150 million years ago. Giant dinosaurs have previously been found mainly in the New World and Africa.
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