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Fossils of Chinese beetlenis show that it was a feathered and beaked , oviraptorosaur closely related to birds

author:Lan Jie said history

The Chinese Bebelon was first discovered in 1993 by a farmer in Xixia County, Henan Province, and then lost to the United States. In 1996, the famous Canadian dinosaur expert Professor Fili Gu first reported the fossil in the US National Geographic magazine, so that this embryo and egg fossil caused a sensation in the world. After 20 years of overseas wandering, through the efforts of Zhang Xingliao, former director of the Henan Geological Museum, And Pu Hanyong and others, the fossil specimen was finally promoted to return to the motherland and permanently exhibited in the Henan Geological Museum. As a result, many scientists named this dinosaur that lived in the Cretaceous period 86 million years ago as "Chinese Shellfisheron".

Fossils of Chinese beetlenis show that it was a feathered and beaked , oviraptorosaur closely related to birds

The diameter of this giant dinosaur's egg nest is wider than the tire of a super-large truck, and the egg fossils are arranged in a ring, and each of the 2 is very close together, indicating that this dinosaur has double fallopian tubes and can lay 2 eggs at a time. Each egg is about 45 cm long, a nest of eggs can reach more than 20 pieces, it is speculated that the diameter of the nest is 2 to 3 meters, and the single egg weighs about 5 kg, which is the largest dinosaur egg found in the world. Some smaller oviraptorosaurs have eggs about 20 cm long and are arranged in a ring of more than 2 layers, sometimes with more than 40 eggs in a litter. The egg fossils are long rugby-shaped with striped notches on the surface, and the microscopic structure of the eggshell suggests that they should have been eggs laid by theropod dinosaurs. Such a big egg, what kind of dinosaurs laid it?

Fossils of Chinese beetlenis show that it was a feathered and beaked , oviraptorosaur closely related to birds

At that time, in the formation of the Tantou Basin of Luanchuan in Henan Province, there were also fossils of large foot dinosaurs of the Tyrannosaurus rex, so it was initially thought that these eggs may be Tyrannosaurus rex. The discovery of the fossilized Chinese berry dragon embryo suggests that the eggs were laid by the giant oviraptorosaur dinosaurs, allowing scientists to link these giant eggs to the mother for the first time. Studies have shown that the egg layer of this embryonic fossil is a feathered and beaked oviraptorosaur closely related to birds. Although no fossilized adult individuals have been found in the region, with reference to the proximity of the giant robber dragon found in Inner Mongolia, scientists speculate that the adult Chinese Bebethosaurus can have a body length of 8 meters and a weight of about 3 tons. Judging from the egg-laying behavior of the small individual oviraptorosaurs closely related to it, The Chinese bebethron is a dinosaur known to incubate eggs and care for offspring.

Fossils of Chinese beetlenis show that it was a feathered and beaked , oviraptorosaur closely related to birds

At present, according to the scientific analysis of the characteristics of the jaws of the chinese beetle dragon bone, the Chinese bebethon has been classified as the neognathosaur family in the oviraptorosaur dinosaurs, and the Chinese bebeloon is a basal new jawed dragon, which is more advanced than the small hunting dragon and more primitive than the giant robber. The research on Chinese Bebelon has important scientific research and scientific significance. It not only added a new species of oviraptorosaurs, especially the giant oviraptorosaurs, but also provided conclusive evidence for the connection between this giant dinosaur egg and its mother, solving the problem of which dinosaur laid the giant egg. Second, the study of the fossil specimen provides important information for further understanding the ontogenesis of oviraptorosaurs.

Fossils of Chinese beetlenis show that it was a feathered and beaked , oviraptorosaur closely related to birds

Third, at present, except for the Chinese Bebelon and the Inner Mongolian Megaclavosaurus found in China, most of the other members of the new collared dragon family are found in North America, and a few are found in Mongolia. The discovery of Chinese berberon provides a new basis for the study of the geographical distribution and migration evolution of neo-jawed dinosaurs.

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