(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 to be published ...
Earth Sciences
Apr 27, 2009
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5
(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 history.
Earth Sciences
Mar 2, 2009
3
1
Diverse and full of sea life, the Earth's Devonian era—taking place more than 370 million years ago—saw the emergence of the first seed-bearing plants, which spread as large forests across the continents of Gondwana and ...
Evolution
Dec 6, 2023
0
388
When an asteroid hit the Earth 66 million years ago, it set off a devastating mass extinction. The dinosaurs (except for a few birds) all died out, along with lots of the mammals. But some small mammals survived, laying the ...
Evolution
Oct 5, 2023
0
204
A new study published in Biology Letters by researchers from the University of Bath (UK) and Universidad Nacional Autónoma de México (Mexico) shows that flowering plants escaped relatively unscathed from the mass extinction ...
Plants & Animals
Sep 12, 2023
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418
A team of paleontologists from the University of Canterbury has discovered a remarkably intact fossil of one of the earliest ancestors of a group of birds now restricted to the tropics. Tropicbirds, now represented by only ...
Evolution
Sep 1, 2023
0
48
Two hundred and fifty-two million years ago, Earth experienced a mass extinction so devastating that it's become known as "the Great Dying." Massive volcanic eruptions triggered catastrophic climate change, killing off nine ...
Paleontology & Fossils
May 22, 2023
0
247
The Late Ordovician mass extinction event (LOME) has long been viewed as odd compared to other mass extinction events in Earth's history. Contrary to nearly all other major extinction phases known from the fossil record it ...
Ecology
May 18, 2023
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266
In times of environmental upheaval, how do communities of organisms respond? When entire species are wiped out, do surviving species move in and take over, or do new species immigrate to fill the gaps?
Evolution
Apr 13, 2023
0
75
Methane emissions created by volcanic activity burning buried fossil fuel deposits could have played a major role in the global warming that triggered the largest mass extinction event in Earth's history, a new study suggests.
Earth Sciences
Nov 30, 2022
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