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Latest Cretaceous–Tertiary extinction event Stories

Leaf-mining Insects Completely Disappeared With The Dinosaurs
2014-07-28 03:16:19

By A'ndrea Eluse Messer, Penn State After the asteroid impact at the end of the Cretaceous period that triggered the dinosaurs' extinction and ushered in the Paleocene, leaf-mining insects in the western United States completely disappeared. Only a million years later, at Mexican Hat, in southeastern Montana, fossil leaves show diverse leaf-mining traces from new insects that were not present during the Cretaceous, according to paleontologists. "Our results indicate both that...

Drophyllum leaf plant fossil
2014-06-06 07:06:12

Gerard LeBlond for redOrbit.com - Your Universe Online Forests affected by fires 66 million years ago during the last days of the dinosaurs recovered no differently than they do today, according to a team of researchers from McGill University and the Royal Saskatchewan Museum. The team discovered the first fossil-record evidence of forest fire ecology during an expedition in southern Saskatchewan, Canada, at Grasslands National Park in an area known as the Frenchman Formation around...

Comet May Have Caused Chicxulub Crater And Dinosaur Extinction
2013-03-24 05:34:56

Brett Smith for redOrbit.com - Your Universe Online One of the most popular theories on the disappearance of the dinosaurs surrounds the 110 mile-wide Chicxulub crater in Mexico. Many scientists believe the extinction was caused by an asteroid that crashed into Earth, leaving only a massive crater behind. However, a group of American scientists is presenting a theory that the culprit was actually a speeding comet, not a relatively slow-moving asteroid as many theories assert....

Megavolcanoes Led To End-Triassic Extinction Allowing Dinosaurs To Evolve
2013-03-22 04:19:11

WATCH VIDEO: [Drilling Into The Jurassic In New Jersey] Lawrence LeBlond for redOrbit.com - Your Universe Online Popular theory suggests that a massive asteroid smashed into Earth around 65 million years ago wiping most life, including the dinosaurs, off the face of the earth. Now, scientists have found evidence of another planetary cataclysm that occurred some 135 million years before the Cretaceous-Paleogene Extinction (CPE) event. An examination of evidence across three continents...

Evidence Supports Dinosaur Extinction Level Event
2013-02-07 19:14:22

Alan McStravick for redOrbit.com — Your Universe Online We´ve had an increasing fascination with comets and asteroids over the past several years. We´ve fictionally sent a rogue group of astronauts to detonate one of these heavenly travelers. We´ve seen the disastrous effect of a potential impact in both movies and on television. We´ve elevated our global anxiety tracking the trajectory of these large, quickly moving celestial bodies. And it seems our vigilance...

Scientists Name Extinct, Ancient Lizard After Obama
2012-12-11 05:12:51

Lee Rannals for redOrbit.com - Your Universe Online Despite the name, a new species of lizard reported about in the scientific journal Proceedings of the National Academy of Sciences is not related to our President, because it went extinct when the giant asteroid hit Earth millions of years ago. Obamadon gracilis was one of the lizard species that suffered from the asteroid event that ended the reign of the dinosaurs 65.5 million years ago. Previous studies suggested that some snake...

Paleontological Enigma Solved Thanks To Scrappy Grave Digger
2012-11-20 12:39:41

Michael Harper for redOrbit.com — Your Universe Online There´s a popular cartoon geared towards adults which tells the story of a hapless young man who accidentally stumbles into a cryogenic capsule just moments before the turn of the century. The capsule just so happens to be set for 1,000 years, long enough for a couple of alien and robot uprisings and for the entire world our character knew to be virtually wiped away. The rest of the show is centered on how this 20th century...

Cretaceous Extinction Worsened By Ecosystem Structures
2012-10-30 04:17:18

April Flowers for redOrbit.com - Your Universe Online A mass extinction, wiping out numerous species including the dinosaurs, marked the end of the Cretaceous Period. A new study, published in Proceedings of the National Academy of Sciences (PNAS), reveals that the structure of North American ecosystems made the extinction worse than it might have been. Mexico's Yucatan Peninsula is home to the now-buried Chicxulub impact crater, caused by a mountain-sized asteroid. This impact is...

Dinosaur Extinction Event Wasn't The First
2012-09-06 07:58:40

April Flowers for redOrbit.com - Your Universe Online Sixty-five million years ago, the most studied mass extinction in Earth's history happened and the dinosaurs were wiped off the planet. A new study from the University of Washington, published in Palaeogeography, Palaeoclimatology, Palaeoecology, indicates that a separate extinction came shortly before that, triggered by volcanic eruptions that warmed the planet and killed life on the ocean floor. A six-mile wide asteroid slamming...

Some Dinosaurs Were Already Dying Out Before Asteroid Impact
2012-05-02 04:49:27

Lawrence LeBlond for RedOrbit.com [ Watch the Video ] An asteroid impact may have ended the reign of the dinosaurs here on Earth about 65 million years ago, but new evidence suggests many of the large, plant-eating dinosaurs were already dying out during the last 12 million years of the Cretaceous period. The findings, by an international team of US and German scientists, do not dispute the mass extinction that killed off all the dinosaurs at the end of the Cretaceous era. They do,...


Word of the Day
abrosia
  • Wasting away as a result of abstinence from food.
The word 'abrosia' comes from a Greek roots meaning 'not' and 'eating'.