Microraptor Gui: Four winged dinosaurs know that the wing dragon belongs to an independent reptile, not a dinosaur, but it may seem strange to think of a winged dinosaur. But a fairly new archaeological discovery adds extra detail to make this idea truly odd: a dinosaur with four wings. The Microraptor gui discovered by Xing Xu and colleagues is strictly considered to be a missing link between dinosaurs and birds.
During the Cretaceous, newly discovered birds or gliders, also known as "four wing dinosaurs" called Microraptor Gui, show how birds evolved from a small dinosaur group called dromaeosaurs It was thought to show. Microraptor gui was found in the Jiufotang group in western Liaoning Province of China. The length of Microraptor Gui is 77 cm and there are four feathers. The difference is that it has feathers on each hind limb. According to Xu Xing of Nature magazine, paleontologist and vertebrate palaeontologist in Beijing, China on January 23, this species is the earliest ancestor of birds and the possibility to use that feather Is the highest. The tail of that long feather stretch that extends from tree to tree
Several small dinosaurs with feathers in the Jurassic or early Cretaceous period were interpreted as likely to have tree grown and / or aerodynamic adaptation. These include Scansoriopteryx, Epidexipteryx, Microraptor, Pedopenna, Anchiornis. Anchiornis is particularly important for this topic. Because Anchiornis lived at the beginning of the latter part of the Jurassic, long before the Archeoptery. There was a controversy as to whether Archeoptery could actually fly. Archeopteryx seems to have brain structure and inner ear balance sensor which bird uses to control flight. Archeoptery also has feathers and feathers similar to modern birds, asymmetrical feathers similar to feathers and tails. However, the Archeoptery lacks the mechanism of the shoulder, the modern bird feathers produce a rapid and powerful rise (see the map of pulleys above the sky above); this is that it and other early birds flapping I can not fly, only to slide
A close relationship between birds and dinosaurs was first proposed in the 19th century after the first bird's founder bird in Germany was discovered. Dinosaurs other than birds and birds not threatened with extinction have many unique skeletal features. In addition, more than 30 fossils of dinosaurs other than birds were collected and feathers were preserved. Even very small dinosaurs such as Microraptor and Anchiornis have long and leafy feathers that form feathers on their arms and legs. The Jurassic Foundation airline Pedopenna also showed these long feather feathers. Witmer concluded in 2009 that this evidence is sufficient to prove that evolution of birds has undergone four stages. Evidence of fossils also indicates that birds and dinosaurs have features such as cavities, gasified bones, gastric stones of the gastrointestinal system, nest building and disgusting behavior.