Fossil egg study suggests dinosaurs were already in decline when asteroid struck - CNN
Sep 23, 2022 1 min, 12 secs

The analysis found whole eggs and eggshell fragments from just three species of dinosaurs, which suggested low dinosaur biodiversity during that time period, the researchers said.

Macroolithus yaotunensis and Elongatoolithus elongatus belonged to a group of toothless dinosaurs known as oviraptors, while the third, Stromatoolithus pinglingensis, was a plant-eating hadrosaur, or a member of the duck-billed dinosaur group.

The researchers said their finding from fossilized eggs was consistent with the fossilized dinosaur bones found in the same and surrounding region, although they did discover a few additional dinosaur bones from the region that show tyrannosaurs and sauropods also lived in the area between 66.4 million and 68.2 million years ago.

"Our results support a long-term decline in global dinosaur biodiversity prior to 66 million years ago," the study said, "which likely set the stage for the end-Cretaceous nonavian dinosaur mass extinction."

Most dinosaurs went extinct, but some smaller, birdlike ones survived and evolved into the birds we see today.

Opponents of the theory of sudden death by asteroid point to a period of global cooling that may have made life hard for many dinosaur species.

Their demise has also been linked to a series of massive volcanic eruptions in the Deccan Traps in what is now India.

Paleontologist Alfio Alessandro Chiarenza, a postdoctoral research fellow at the University of Vigo in Spain who has worked on paleoclimate records from that period, said that fossilized eggs are not a reliable record of dinosaur diversity.

1. Jay Leno, 72, HITS police car en-route to comeback stage performance - Daily Mail
Nov 28, 2022 # entertainment 1 min, 40 secs
2. Metallica drummer talks how their 'Master of Puppets' collaboration with 'Stranger Things' came to be - Fox News
Nov 29, 2022 # entertainment 1 min, 11 secs
3. What causes IBS? Gravity allergy to blame, scientist theorizes - Daily Mail
Dec 01, 2022 # health 52 secs
4. Sharon Stone, 64, commands attention in a quirky pink feathered suit at The Red Sea Film Festival - Daily Mail
Dec 02, 2022 # politics 1 min, 32 secs
5. Trying to lose weight? Try walking BACKWARDS on a treadmill - Daily Mail
Dec 01, 2022 # health 42 secs
6. Far Cry 6's Lost Between Worlds expansion traps players in a surreal alien simulation -
Nov 29, 2022 # technology 2 mins, 15 secs
7. World Cup 2022 Highlights: Morocco upsets Belgium, 2-0 - FOX Sports
Nov 27, 2022 # politics 46 secs
8. Jennifer Lopez reflects on Ben Affleck split: 'I honestly felt like I was going to die' - Yahoo Entertainment
Nov 28, 2022 # politics 12 secs
9. Hospitals in New Jersey brace for more flu, COVID, RSV cases - WPVI-TV
Nov 29, 2022 # health 32 secs
10. Pixel Recorder 4.2 rolling out ‘Speaker labels’ that can detect multiple people talking - 9to5Google
Dec 01, 2022 # technology 57 secs
11. Kiszla: Voicing the frustration of Broncos Country with Russell Wilson, teammate Mike Purcell chews out quarterback on sideline - The Denver Post
Nov 28, 2022 # politics 0 secs
12. Kim Kardashian Asked for Feedback on ‘The Kardashians’ and Fans Aren’t Holding Back - Yahoo Life
Nov 27, 2022 # entertainment 53 secs
13. All of Kate Middleton's best outfits from her Boston tour with Prince William - Page Six
Dec 02, 2022 # entertainment 1 min, 32 secs
14. Jennifer Lopez On Her 2004 Breakup With Ben Affleck: "Felt Like I Was Going To Die" - NDTV
Nov 29, 2022 # entertainment 22 secs
15. Senate reaches deal to avert rail strike - Fox Business
Dec 01, 2022 # politics 1 min, 29 secs
16. Tesla is still dominant, but its U.S. market share is eroding as cheaper EVs arrive - CNBC
Nov 29, 2022 # politics 1 min, 4 secs


Get monthly updates and free resources.


© Copyright 2022 365NEWSX - All RIGHTS RESERVED