In recent years, the earliest fragmented eggshell fossils about 80 million years ago were discovered in Shanyang, Shaanxi and Laiyang, Shandong. Who laid the eggs?

  The latest research by Wang Xiaolin's team from the Institute of Vertebrate Paleontology and Paleoanthropology of the Chinese Academy of Sciences (Institute of Paleospine, Chinese Academy of Sciences) believes that they are less different from the dinosaur egg species in the Nanxiong Basin of Guangdong-Pingling Laminated Eggs, and with the eggs of North American Citrus The shells are similar, and it is speculated that the mother dinosaur may belong to the hadrosauridae.

  This paper on the latest research progress in the field of paleontological fossils was recently published online by the international professional academic journal "Historical Biology".

The study also conducted an in-depth analysis of the round egg family fossil classification of dinosaur eggs, and revised the classification positions of other round egg family members at home and abroad. It also provided new evidence for the discussion of the egg-laying mothers of such dinosaur eggs.

  On April 20th, Wang Qiang, the corresponding author of the paper and the associate researcher of the Institute of Paleospine of the Chinese Academy of Sciences, and the first author of the paper, Zhu Xufeng, a doctoral student at the Institute of Paleospine of the Chinese Academy of Sciences, were interviewed by a reporter from China News Agency in Beijing on the latest research results.

  Zhu Xufeng said that in recent years, the research team has collected a large number of dinosaur eggshell fragments in Shanyang Basin, Shaanxi Province and Laiyang Basin, Shandong Province. The fossil age is about 80 million to 66 million years ago. 

  As the most important result of this research, the research team of the Chinese Academy of Sciences completed the revision of the characteristics of the genus of dinosaur eggs and the classification of the original related dinosaur egg fossils.  

  Wang Qiang pointed out that this study not only enriched dinosaur egg species, clarified the domestic and international distribution of Pingling laminated eggs, and further revised the foreign classification of some round eggs dinosaur eggs.

  Through this research, it is further clarified that when establishing the relationship between dinosaur eggs and dinosaurs, more will be based on finding embryos in dinosaur eggs, or the close relationship between young dinosaur individuals and dinosaur eggs in the same layer. It provides a good basis for establishing the relationship between dinosaurs at different locations, different horizons, and different eras throughout the Cretaceous period.

(Reporter Sun Zifa produced Wu Rui)

Editor in charge: [Wang Kai]