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| The discovery of 120 million larvae of ancient beak birds in western Liaoning provides important evidence for the origin and evolution of birds |
Chinanews.
Scientists from China, Switzerland, and Germany have cooperated to study an ancient beak bird specimen from the Jehol Biota in the western Liaoning region of China about 120 million years ago, revealing an important stage in the evolution of birds.
At the same time, the prosperous anti-birds with teeth in the Cretaceous Period (approximately 145 million to 66 million years ago) lived mainly on trees, and went extinct with the dinosaurs in the mass extinction event 66 million years ago.
From the University of Friborg, Switzerland Christian Fuchs (Christian Foth), China Kexue Yuan Vertebrate Paleontology and Paleoanthropology Wang camp, Germany Altmuehl Valley Dinosaur Museum Frederick Shibindele (Frederik Spindler) and Liaoning The paper on the research results of ancient beak birds jointly completed by Lin Youhai and Yang Rui of the University of Engineering and Technology has recently been published in the international professional academic journal Frontiers in Earth Science.
Academy of Sciences
Doctoral student Wang Shiying said in an interview with a reporter from China News Agency that for a long time, the Archaeopteryx discovered in Solenhofen in Germany has been the most important evidence for paleontologists to explore the origin of birds.
The latest research on the fossil specimens of ancient beak birds from the Jehol Biota was carried out by the cooperative team.
The researchers found through comparison that the fossil specimen should belong to the ancient-beaked bird, and that the body of the specimen is small and the degree of bone healing is low, which represents the juvenile stage of the ancient-beaked bird.
Wang Shiying pointed out that the most important information of the ancient beak bird fossil specimens studied in this study comes from a group of black flying feathers.
In addition, the abdomen of the ancient beak bird fossil specimens contains some seed fossils that have not been completely digested, but the gastrolith is not preserved, while the larger ancient beak bird preserves the gastrolith.
