(PhysOrg.com) -- A new technique has allowed scientists to pin down the timing of ancient glaciations, linking them more firmly to two bursts of extinction.
Earth Sciences
Mar 8, 2011
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(PhysOrg.com) -- Researchers here have discovered the pivotal role that volcanoes played in a deadly ice age 450 million years ago.
Earth Sciences
Oct 26, 2009
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One of Earth's most consequential bursts of biodiversity—a 30-million-year period of explosive evolutionary changes spawning innumerable new species—may have the most modest of creatures to thank for the vital stage in ...
Earth Sciences
Jun 2, 2024
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419
A new study has revealed that a group of prehistoric sea creatures is not as ancient as we thought—their earliest fossils are actually seaweeds.
Evolution
Mar 8, 2023
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234
A clutch of marine fossil specimens unearthed in northern Portugal that lived between 470 and 459 million years ago is filling a gap in understanding evolution during the Middle Ordovician period.
Paleontology & Fossils
Jun 4, 2019
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126
Ancient sea-floor dwellers are providing new clues about how mass extinctions steer life's evolutionary history, according to scientists.
Plants & Animals
Mar 29, 2019
1
127
Researchers from the University of Leicester, working with an international team of geologists, have discovered an enigmatic fossil of a 450 million year-old creature resembling a tiny ice-cream cone.
Archaeology
Jan 23, 2018
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190
(Phys.org) —A team of researchers with members from the U.S., Sweden and Switzerland studying a meteorite found in a Swedish quarry is reporting that the rock is unlike anything else ever found. In their paper published ...
New Ohio University research suggests that the rise of an early phase of the Appalachian Mountains and cooling oceans allowed invasive species to upset the North American ecosystem 450 million years ago.
Earth Sciences
Aug 21, 2013
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The recent storms that have battered settlements on the east coast of America may have been much more frequent in the region 450 million years ago, according to scientists.
Earth Sciences
Nov 15, 2012
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