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Revolutionary Dating Method Illuminates the Oxygenation of Ancient Seas
Madrid, Spain (SPX) Apr 05, 2024 In a groundbreaking advancement, researchers at Hebrew University have employed dolomite U-Pb geochronology to chart the oxygen levels in ancient marine environments. This innovative approach has unearthed variances in the U-Pb ratios of dolomite samples, establishing a novel method for deducing the oxygen content of ancient oceans. The analysis highlights a pronounced increase in marine oxygenation during the Late Paleozoic era, around 400 million years ago. This era postdates the advent of animal life ... read more |
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Earth's earliest forest unearthed in UK Coastal FossilsCambridge UK (SPX) Mar 11, 2024 Researchers from the Universities of Cambridge and Cardiff have unearthed fossils in the high sandstone cliffs of South West England's Devon and Somerset coast, revealing the world's oldest known fo ... more 
Mercury rising: Study sheds new light on ancient volcanoes' environmental impactUniversity Park PA (SPX) Mar 04, 2024 Massive volcanic events in Earth's history that released large amounts of carbon into the atmosphere frequently correlate with periods of severe environmental change and mass extinctions. A new meth ... more 
New techniques uncover ancient biomass secrets in Australian rocksGottingen, Germany (SPX) Feb 22, 2024 Researchers from the University of Gottingen have shed new light on the Earth's earliest life forms by analyzing ancient rocks from the Pilbara Craton in Western Australia, one of the few places on ... more 
Even the oldest eukaryote fossils show dazzling diversity and complexitySanta Barbara CA (SPX) Jan 12, 2024 The sun has just set on a quiet mudflat in Australia's Northern Territory; it'll set again in another 19 hours. A young moon looms large over the desolate landscape. No animals scurry in the waning ... more |
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Study suggests micrometeorites as key nitrogen source for primordial EarthKyoto, Japan (SPX) Dec 04, 2023 A recent study published in 'Nature Astronomy' reveals a novel understanding of how nitrogen, an essential component for life, may have been transported to Earth during its formative years. This res ... more 
Plants that survived dinosaur extinction pulled nitrogen from airDurham NC (SPX) Nov 27, 2023 Once a favored food of grazing dinosaurs, an ancient lineage of plants called cycads helped sustain these and other prehistoric animals during the Mesozoic Era, starting 252 million years ago, by be ... more 
Research in Lake Superior reveals how sulfur might have cycled in Earth's ancient oceansSanta Barbara CA (SPX) Nov 21, 2023 Geochemist Alexandra Phillips has sulfur on her mind. The yellow element is a vital macronutrient, and she's trying to understand how it cycles through the environment. Specifically, she's curious a ... more 
Recreation of ancient seawater reveals which nutrients shaped the evolution of early lifeOxford UK (SPX) Nov 14, 2023 Scientists know very little about conditions in the ocean when life first evolved, but new research published in Nature Geoscience has revealed how geological processes controlled which nutrients we ... more 
The first dinosaur egg was leatheryBeijing, China (SPX) Nov 14, 2023 The discovery of several exceptionally preserved reproduction-related dinosaur specimens over the last three decades has improved our knowledge of dinosaur reproductive biology. Nevertheless, due to ... more |
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New microfossils suggest earlier rise in complex life
University Park, PA (SPX) Nov 08, 2023 Microfossils from Western Australia may capture a jump in the complexity of life that coincided with the rise of oxygen in Earth's atmosphere and oceans, according to an international team of scientists. The findings, published in the journal Geobiology, provide a rare window into the Great Oxidation Event, a time roughly 2.4 billion years ago when the oxygen concentration increased on Earth, fundamentally changing the planet's surface. The event is thought to have triggered a mass extinction and ... read more 
Ancient 450-million-year-old organism finds new life in SoftboticsPittsburgh PA (SPX) Nov 07, 2023 Researchers in the Department of Mechanical Engineering at Carnegie Mellon University, in collaboration with paleontologists from Spain and Poland, used fossil evidence to engineer a soft robotic re ... more |
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Bizarre new fossils shed light on ancient planktonLeicester UK (SPX) Oct 31, 2023 A scientist from the University of Leicester has discovered a new type of fossil that reveals life in the oceans half a billion years ago. The tiny organisms, detailed in a new study in the jo ... more 
Dinosaurs likely brought down by dust, not asteroid, researchers sayWashington DC (UPI) Oct 30, 2023 A new study suggests that a prolonged dust cloud may have played a larger role than previously thought in the extinction of dinosaurs approximately 66 million years ago. ... more 
Iron in ancient deep magma ocean probed by ultra-fast femtosecond X-ray lasersTempe AZ (SPX) Oct 23, 2023 When the Earth was completing its formation approximately 4.5 billion years ago, it was enveloped in a global ocean of molten magma, extending hundreds to thousands of kilometers beneath its surface ... more 
Ancient diamonds shine light on the evolution of EarthJohannesburg, South Africa (SPX) Oct 19, 2023 The analysis of ancient, superdeep diamonds dug up from mines in Brazil and Western Africa, has exposed new processes of how continents evolved and moved during the early evolution of complex life o ... more 
Large swings in past ocean oxygen revealedManoa HI (SPX) Oct 16, 2023 As the climate warms, there is major concern that Earth's ocean will lose oxygen. A study published recently by oceanographers at the University of Hawai'i at Manoa revealed that locked in ancient d ... more |
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