Once the birds had four wings, suggests a new study paleontological | RedGage:
Studying fossils of ancient birds 11 copies, Shandong Tianyu Museum of Nature held in China, paleontologists have discovered traces of bird feathers feet high, a finding suggesting that these primitive birds had four wings, which could play a major role in the emergence and evolution of flight.
Most paleontologists believe that birds are descended from dinosaurs with feathers, their belief is supported by the discovery of numerous creatures like birds and endowed with feathers.
In 2000, he discovered a non-avian dinosaur with feathers in all 4 states, called Microraptor , and was probably able to fly.
In addition, some specimens of Archaeopteryx - a transitional form between dinosaurs and modern birds feather - weak traces of structures such as feathers, legs, but these structures were well preserved.
Now, however, researchers have found up to 11 fossil feathers from the Chinese province of Jehol fossil site Liaoning; fossils date from the Lower Cretaceous, with 100-150 million years old.
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