The explosion of animal life in Earth's oceans half a billion years ago during and after the Cambrian Period is commonly attributed to a substantial and sustained rise of free oxygen (O 2) in seawater ...
Shelled sea creatures were relatively free of predators 250 million years ago. But geological scientists have discovered a tiny ancient brachiopod that was drilled by predators at rates similar to ...
Surprising new research shows that, contrary to conventional belief, remains of chitin-protein complex -- structural materials containing protein and polysaccharide -- are present in abundance in ...
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Marine regression emerges as key driver of Late Paleozoic Ice Age in high-resolution model
Earth system box models are essential tools for reconstructing long-term climatic and environmental evolution and uncovering Earth system mechanisms. To overcome the spatiotemporal resolution ...
Hundreds of millions of years ago, in the middle of what would eventually become Canada's Yukon Territory, an ocean swirled with armored trilobites, clam-like brachiopods and soft, squishy creatures ...
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Fossils predate the written record by billions of years, but their impact on human history—and the way humans percieve the world around them—has been palpable for centuries. By offering a rare glimpse ...
HOUSTON, June 16 – Apache Corp. has drilled eight new field discoveries in 10 attempts in 2011, including its first Paleozoic success, as it pushes younger Jurassic and Cretaceous plays farther ...
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