New Knowledge of Tide ｜ Dinosaur extinction is because "the success rate of egg hatching is too low"?

Author:Yangcheng Evening News Yangche Time:2022.09.24

Text Settlement/Yangcheng Evening News all -media reporter Yi Zhina

The Institute of Ancient vertebrates and Ancient Human Research Institute of the Chinese Academy of Sciences recently said that after completing the study of dinosaurs and egg shell specimens buried from more than 1,000 late Whitening Basin in Shaanxi Shanyang Basin, they thought:

Except for dinosaur extinction, in addition to the two traditional external factors that the asteroid hit the earth and the volcanic eruption, there may be their own reasons.

They published an article published in an article in the International Journal of the American Academy of Sciences and proposed that based on the research on dinosaur eggs, or from the perspective of dinosaur diversity evolution, it revealed the new mechanism of dinosaur extinction.

As the main carrier of dinosaurs, the main carrier of dinosaurs on the earth can not only reflect the breeding habits of the dinosaur, but also the rich and buried laws in the strata can also reflect the ancient environment information of the dinosaur survival.

According to a systematic and stratigraphic research on the system carried out in the Shanyang Basin of Shaanxi, the researchers pointed out that dinosaurs are ovarian, and the success rate of dinosaur eggs directly determines the dinosaur population. Whether it is prosperous.

The Dinosaur egg fossil specimen of the Dinosaur egg fossil specimens shown in the ancient vertebrae of the Chinese Academy of Sciences

The incubation of dinosaur eggs requires the appropriate temperature, humidity and even carbon dioxide concentration. In the late white world, with the synergy of the natural ecosystem and the dinosaur itself, the biodiversity of dinosaurs has occurred. The environmental adaptation ability, which has caused it to survive and recovery in environmental changes caused by major disaster events such as volcanic eruption or asteroid impact, and eventually moved to extinction.

The reason for the extinction of dinosaurs has always been a mystery. Researchers have proposed many hypotheses, including the famous "Asteroid impact hypothesis". The evolution of the continuous decline proposed by the researchers' biological diversity provides a new basis and perspective for answering the mystery of dinosaur extinction.

According to reports, the research team collected more than 1,000 pieces of dinosaur eggs and eggshell specimens in the Shaanyang Basin in Shaanxi. A small amount of tyrannosaurus and script bones were found here. After the analysis, they found that the dinosaur diversity in the Shanyang Basin has been at a lower level for about 2 million years before its extinction.