News tagged with cretaceous mass extinction
Not by asteroid alone: Rethinking the Cretaceous mass extinction
(PhysOrg.com) -- At the end of the Cretaceous period some 65 million years ago, an asteroid slammed into Mexico’s Yucatan Peninsula, causing severe but selective extinction. While that is widely accepted, ...
Space & Earth / Earth Sciences
Jan 19, 2012 |
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Massive volcanoes, meteorite impacts delivered one-two death punch to dinosaurs: study
(PhysOrg.com) -- A cosmic one-two punch of colossal volcanic eruptions and meteorite strikes likely caused the mass-extinction event at the end of the Cretaceous period that is famous for killing the dinosaurs ...
Space & Earth / Earth Sciences
Nov 17, 2011 |
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Extinction runs in the family
(PhysOrg.com) -- Global calamities like the one that doomed most dinosaurs forever alter the varieties of life found on Earth, but new research shows that it doesn't take a catastrophe to end entire lineages. ...
Aug 06, 2009 |
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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 |
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Search results for cretaceous mass extinction
Were dinosaurs undergoing long-term decline before mass extinction?
Despite years of intensive research about the extinction of non-avian dinosaurs about 65.5 million years ago, a fundamental question remains: were dinosaurs already undergoing a long-term decline before an ...
Other Sciences / Archaeology & Fossils
May 01, 2012 |
3.8 / 5 (8) |
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First fruitful, then futile: Ammonites or the boon and bane of many offspring
Ammonites changed their reproductive strategy from initially few and large offspring to numerous and small hatchlings. Thanks to their many offspring, they survived three mass extinctions, a research team ...
Apr 23, 2012 |
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Egg-laying beginning of the end for dinosaurs
Their reproductive strategy spelled the beginning of the end: The fact that dinosaurs laid eggs put them at a considerable disadvantage compared to viviparous mammals. Together with colleagues from the Zoological ...
Other Sciences / Archaeology & Fossils
Apr 17, 2012 |
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Seeking a pot of geological gold
Researchers are moving a step closer to solving one of the greatest murder mysteries of all time. It happened roughly 200 million years ago, marking the boundary between the Triassic and Jurassic periods, ...
Space & Earth / Earth Sciences
Dec 16, 2011 |
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Impact study: Princeton model shows fallout of a giant meteorite strike
(PhysOrg.com) -- Seeking to better understand the level of death and destruction that would result from a large meteorite striking the Earth, Princeton University researchers have developed a new model that ...
Space & Earth / Earth Sciences
Oct 19, 2011 |
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Improving evolutionary Tree of Life: Study provides robust molecular phylogeny for mammalian families
An international research team led by biologists at the University of California, Riverside and Texas A&M University has released for the first time a large and robust DNA matrix that has representation for ...
Sep 22, 2011 |
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Primitive birds shared dinosaurs' fate
A new study puts an end to the longstanding debate about how archaic birds went extinct, suggesting they were virtually wiped out by the same meteorite impact that put an end to dinosaurs 65 million years ...
Other Sciences / Archaeology & Fossils
Sep 19, 2011 |
5 / 5 (3) |
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Last dinosaur before mass extinction discovered
A team of scientists has discovered the youngest dinosaur preserved in the fossil record before the catastrophic meteor impact 65 million years ago. The finding indicates that dinosaurs did not go extinct ...
Other Sciences / Archaeology & Fossils
Jul 13, 2011 |
4.5 / 5 (16) |
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The rise and rise of the flying reptiles
(PhysOrg.com) -- Pterosaurs, flying reptiles from the time of the dinosaurs, were not driven to extinction by the birds, but in fact they continued to diversify and innovate for millions of years afterwards.
Other Sciences / Archaeology & Fossils
Jul 06, 2011 |
4.7 / 5 (6) |
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Greenhouse ocean study offers warning for future
The mass extinction of marine life in our oceans during prehistoric times is a warning that the Earth will see such an extinction again because of high levels of greenhouse gases, according to new research ...
Space & Earth / Earth Sciences
May 17, 2011 |
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List of search results for cretaceous mass extinction
