New birds information are found in the Early Cretaceous Rehe biota, belonging to Eoconfuciusornis.
The Confucius Birds are the oldest and most primitive members of the Confuciusornithiformes, while the Confucius birds are the oldest birds information with keratous beaks. Although thousands of specimens of the Norwegian Bird baths; birdwatchfacts.com, have been found, only the second anthropogenic fossils were reported in this study.
The first group of birds is found only in the first part of the Huaji camp group, which is the oldest bird in addition to the ancestral birds. It is also the initial stage of the evolution of the Rehe community. The bird fossils are very rare.
The newly reported ancestral bird is housed in the Tianyu Nature Museum in Shandong, which preserves many traces of soft tissue, including ovaries, indicating that it is a female individual.
This ovary preserves the growing and different sizes of yolk, which is similar to the living birds, indicating that the Confucius birds and the living 'birds information' similar to the evolution of a complex energy model to adapt to the early growth and breeding period High levels of metabolic needs.
In contrast, in other primitive birds, including more progressive anti-birds, and non-bird dinosaurs, the size of the egg yolk is small and may indicate that their metabolic levels are low.
The new fossil preserved skin prints indicate that the wing of the initial bird bird has an auxiliary wing film.
Fresh birds have a large number of wing films, so the discovery of the initial bird will provide a lot of information to discuss the appearance of the wing film. The pterodactylus does not develop the winglet wing film (which connects the winglets and other bones of the hand), but has a front wing film (connecting the shoulder and wrist) and the rear wing (connecting the ulna and the hand) The front wing film and the rear wing film appear earlier than the winglet wing film.
More importantly, the new Porcupine fossil preserves the internal structure of the wing membrane, showing the same collagen connection structure as the living birds, and this structure facilitates the lifting of the lift, thus assisting the flying feathers in flight In the role.
The new beginning of the Confucius Fossil also preserves the feather color spots, which may represent the birds of the earliest sexual double type feathers. The new specimen may indicate that the female population of the initial bird is smaller than the male individual, and there is no long tail feather, which is similar to the later days of the bird.Through the scanning electron microscope, the researchers observed the feather pigment body, and accordingly on the beginning of the bird bird feathers were restored, that the beginning of the bird's wings have black spots, the body's feathers in the neck with a red band (recovery See Michael Rothman painted)
Up to now, no other Rehe biota birds have so many types of soft tissue or prints (feathers, skin, collagen, ovaries), and these structures found in the new specimens provide the most accurate information for the restoration of primitive “birds information”.
These soft tissue structures provide a large number of biological characteristics of the initial bird, as well as its feather structure, the presence of both sexes, and the development of the wing membrane, all of which contribute to the evolution of the flight capabilities of the original birds.