Order and reconstruction Aurornis Xui offers two birds face the most ancient in the world.
On Wednesday, 29-05-2013 species Archaeopteryx expressed into winged dinosaur class. Type Archaeopteryx had nearly 150 years regarded as the ancestors of birds from all over the earth. It is in line with the nation's bird fossils older than Archaeopteryx species as published in the latest issue of the journal Nature by scientists from China.
Since it was first discovered in 1861 in Bavaria fossil Archaeopteryx is placed on the basis of the evolution of an ancient bird group "Avialea" group which is considered as the origin of the bird began to evolve.
Archaeopteryx fossil discovered just two years before the evolution of the legend "Charles Darwin" launched its incredible book called "The Origin of Species. Fossil Archaeopteryx has been a case study of dinosaur groups evolusu trip bird.
In 2011 ago, scientists from the land of China has published have found feathered dinosaurs but not birds which have similar characteristics with Archaeopteryx. Based on these findings the scientists now classify Archaeopteryx is not a bird, but included in the class Deinonychus, ie groups with a feathered dinosaur similar to a bird sightings.
The current state of things has changed since the discovery of fossils by Tiaojishan Formation, Liaoning Province, northeast China. That is the type species of the feathered Jurassic period. The new species is named Aurornis Xui. According Disxovery on Wednesday, 29-05-2013 last election Xui Aurornis name from the word "Aurora" which means the beginning and the dawn (Latin) while the word "Xui" is derived from the name of a prominent Chinese palaeontologist "Xu Xing" a dinosaur expert hairy and transitional species between dinosaurs and birds.
Since the discovery of the fossil "Godefroit Pascal, of the Royal Belgian Institute of Natural Science", who led the research team said that they had found the real line of evolution and more accurate. He also explained that the primitive bird Archaeopteryx is included and the fossils found are Aurornis Xui is a more primitive bird group again. Pascal Godefroit in AFP Thursday, 30-05-2013 said that Aurornis Xui is the oldest bird known to man, older than Archaeopteryx.
Estimated Aurornis Xui live at 150 million years ago, Aurornis Xui has a length of about 50 cm and has the ability to run fast. Based on the structure of the tooth is most likely Aurornis Xui small insects.
By Andrea Cau, vertebrate palaeontologist from Geologico Museo Giovanni Capellini in Italy also commented on the Discovery says that Aurornis Xui looks as land bird with a long tail with claws and jaws are toothed.
Sources:
http://afp , discovery /
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