Tag Archives: years
Siberian volcanic eruptions caused extinction 250 million years ago, new evidence shows
The Great Permian Extinction, which occurred approximately 250 million years ago, was caused by massive volcanic eruptions that led to significant environmental changes, new evidence shows. Geology News — ScienceDaily
Modern humans emerged more than 300,000 years ago new study suggests
A genomic analysis of ancient human remains from KwaZulu-Natal revealed that southern Africa has an important role to play in writing the history of humankind. Paleontology News — ScienceDaily
Paleontologist aids in new discovery 33 years after finding fossil
The fossilized plesiosaur Sankar Chatterjee found in 1984 is giving scientists a new understanding of convergent evolution between reptiles and mammals. Paleontology News — ScienceDaily
Human bones in south Mexico: Stalagmite reveals their age as 13,000 years old
A prehistoric human skeleton found on the Yucatán Peninsula is at least 13,000 years old and most likely dates from a glacial period at the end of the most recent ice age, the late Pleistocene. A German-Mexican team of researchers … Continue reading
Dino-killing asteroid could have thrust Earth into two years of darkness
Tremendous amounts of soot, lofted into the air from global wildfires following a massive asteroid strike 66 million years ago, would have plunged Earth into darkness for nearly two years, new research finds. This would have shut down photosynthesis, drastically … Continue reading
Dino-killing asteroid could have thrust Earth into two years of darkness
Tremendous amounts of soot, lofted into the air from global wildfires following a massive asteroid strike 66 million years ago, would have plunged Earth into darkness for nearly two years, new research finds. This would have shut down photosynthesis, drastically … Continue reading
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Seven complete specimens of new flower, all 100 million years old
A Triceratops or Tyrannosaurus rex bulling its way through a pine forest likely dislodged flowers that 100 million years later have been identified in their fossilized form as a new species of tree. Paleontology News — ScienceDaily
Fruit fly mutation foretells 40 million years of evolution
Small, seemingly insignificant mutations in fruit flies may actually hold clues as to how a species will evolve tens of millions of years in the future. Paleontology News — ScienceDaily
Lunar dynamo’s lifetime extended by at least 1 billion years
Astronomers report that a lunar rock collected by NASA’s Apollo 15 mission exhibits signs that it formed 1 to 2.5 billion years ago in the presence of a relatively weak magnetic field of about 5 microtesla. That’s around 10 times … Continue reading
What flowers looked like 100 million years ago
Flowering plants with at least 300,000 species are by far the most diverse group of plants on Earth. They include almost all the species used by people for food, medicine, and many other purposes. However, flowering plants arose only about … Continue reading