NOV 20, 2016 10:55 AM PST

Did Dinosaurs Exist 20 Million Years Earlier than Originally Thought?

WRITTEN BY: Anthony Bouchard

When you think of the dinosaurs, you think of a time long ago when large creatures walked the Earth before humans did. But as we learn more about them, we keep finding that they were more and more bird-like.
 
As this reality becomes clearer, scientists want to know more about when the transition from dinosaur to modern bird occurred.
 
Published in Biology Letters, researchers from the Macquarie University, led by Graeme Lloyd, have created a new dinosaur tree encompassing almost 1,000 individual species, making it the largest one to date.
 

 
In what was originally a study to try and find out when the split happened between dinosaurs and birds in early Earth, researchers were surprised to see that the creatures were probably walking the Earth a lot earlier than originally thought.
 
Most scientists agree that dinosaurs first started walking the planet about 230 million years ago, but the new research has revealed how the figure more realistically might be pushed as far out as about 250 million years ago.
 
This is a pretty bold finding, since the oldest-known fossil to date is of a Nyasasaurus, which was originally dated to be 240 million years old.
 
Using more than one type of dating process, the researchers came to these conclusions more than once. The fact that multiple dating processes agreed with one another meant the figures appeared valid.
 
Now this raises another question for scientists: at some point between the Permian and Triassic periods, a major extinction event happened, and these new figures seem to suggest that the creatures were able to survive that event, so how could this be?
 
More research is required to dig deeper into this mystery, but the answers should shed some light into various other questions as well, such as whether or not our dating process is as accurate as we think, as well as whether or not such an extinction level event actually happened when we thought it did.
 
Source: Phys.org

About the Author
  • Fascinated by scientific discoveries and media, Anthony found his way here at LabRoots, where he would be able to dabble in the two. Anthony is a technology junkie that has vast experience in computer systems and automobile mechanics, as opposite as those sound.
You May Also Like
SEP 24, 2021
Earth & The Environment
We've Killed Half the World's Coral
SEP 24, 2021
We've Killed Half the World's Coral
A recent study published in One Earth on Sep. 17 paints a poor picture for the state of the world’s coral reefs. L ...
SEP 28, 2021
Earth & The Environment
How to Save the World's Coral Reefs? Global Reforestation
SEP 28, 2021
How to Save the World's Coral Reefs? Global Reforestation
With recent news of the world's coral supply standing at just 50% of what it was in the 1950s, any strategies for protec ...
OCT 01, 2021
Cell & Molecular Biology
Zebrafish Teach Us More About Predictions
OCT 01, 2021
Zebrafish Teach Us More About Predictions
We often use predictions about the future to help us make decisions. All organisms have to make choices every day, and t ...
OCT 18, 2021
Cell & Molecular Biology
New Climatic Data from China Sheds Light on the Emergence of the Dinosaurs
OCT 18, 2021
New Climatic Data from China Sheds Light on the Emergence of the Dinosaurs
The climate is hot and muggy with the world's oceans as hot as a sauna. Also, it just started raining and it will not st ...
NOV 10, 2021
Plants & Animals
Meet Leti, a fossilized Homo naledi child skeleton
NOV 10, 2021
Meet Leti, a fossilized Homo naledi child skeleton
A new fossil attributed to the species Homo naledi has been discovered.
NOV 15, 2021
Plants & Animals
Could Green Tea Offer Anti-Aging Benefits?
NOV 15, 2021
Could Green Tea Offer Anti-Aging Benefits?
Green tea is a popular beverage, with the green tea market expected to grow by almost 12% over the next several years. I ...
Loading Comments...