Scientists have discovered an interesting fact about dinosaurs

dinosaur image


The death of the dinosaurs has long attracted the attention of paleontologists.

Their mass extinction after a fiery meteor hit Earth some 66 million years ago, when volcanoes erupted and global temperatures rose and fell, was the tumultuous end of the reign of these once dominant beasts. But now another study suggests the dinosaurs were already on the verge of extinction millions of years before the meteorite impact, according to an analysis of more than 1,000 fossilized eggshells that have been found in central China.

The study was published in PNAS.

“Dinosaurs gradually became extinct over millions of years, instead of suddenly disappearing due to sudden disasters.” She said South China Morning Post study author Qiang Wang of the Chinese Academy of Sciences.

However, these conclusions have yet to be verified. The study is the continuation of a long debate among paleontologists about whether non-avian dinosaurs died suddenly or were already on the verge of extinction before a 10-kilometer asteroid decreed their fate.

A new study by a team of geologists and paleontologists working in China suggests that dinosaur biodiversity was disappearing at least 2 million years before the dinosaurs went extinct at the end of the Cretaceous, leaving birds as their only living descendants.

His findings are based on a collection of egg fossils, including several complete and incomplete dinosaur eggs preserved in 150-meter rock layers that were deposited between 68.2 and 66.4 million years ago, just before the dinosaurs died out above.

“Our findings support a long-term decline in global dinosaur biodiversity before 66 mA, which likely set the stage for the mass extinction of non-avian dinosaurs at the end of the Cretaceous.” to write Fei Han, a researcher at the China University of Geosciences, and his colleagues in their paper.

Despite their claims, the team rightly notes that the extinction of dinosaurs remains controversial for a number of reasons, such as “sampling biases in the fossil record, differences in analytical approaches used, and the rarity of highly accurate geochronological dating of dinosaur fossils.” “.

Other studies that also suggest that the dinosaurs were prone to extinction suggest that their diversity may have started to decline 10 million years before the meteor hit Earth.

Khan and his colleagues concluded that the only way to resolve conflicting interpretations was to find, sample and analyze more fossils and integrate existing data from fossil sites around the world to better understand extinction patterns.

Cursor wrote this earlier Scientists discover the dinosaur skeleton covered in skin. In Canada, archaeologists found fossils on the side of a mountain that turned out to be an extremely rare skeleton of a “platypus” dinosaur.

The Cursor also reported that in Africa they discovered “oldest” dinosaur..

Also, in Poland, archaeologists have unearthed tomb of a vampire.

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