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Pterosaurs were flying control as fossils in Brazil DECODE

Brazilian researchers presented today (Wednesday) the fossil of a pterosaur that shows that these winged reptiles had "absolute control of flight" and gives a new direction to research on this species.

The fossil of the "Jeholopterus ningchengensis "was found in deposits of about 130 million years in the region of Inner Mongolia (China) and presented today at the National Museum of Rio de Janeiro by the Brazilian paleontologist Alexander Kellner, who participated in the discovery along with researchers from British, Chinese and Germans.

According Kellner, the importance of this fossil is the existence of structures on the wings which are a change in the theories that so far had on the animal and its ability to fly.

These new structures, known as picnofibras and actinofibras, could only be discovered by working with ultraviolet rays Helmut Tischlinger German paleontologist.

Thus, the finding of picnofibras, similar to the hairs of some mammals, enabled the researchers to first conclude that pterosaurs were endothermic animals and therefore able to control her own body temperature.

Also thanks to ultraviolet rays is known that the actinofibras, which were already known, is structured in a multi-layered plot unlike what was thought until now.

This would give greater strength to the wings of these animals and the ability to stretch and retract at will, allowing for stable flight with high control.

membranes found in the pterosaur would be even stronger than those with some actual flying animals like bats.

For Professor Kellner, the finding "removes the previous study models," said some of which the wings of pterosaurs would serve only to plan.

also paleontologist explained that this discovery opens up a whole range of possibilities to trigger further research "on these animals, which are not considered as birds but not dinosaurs, despite having coexisted.

However, the scientist also said that now opens a new challenge for researchers who must complete the exact composition of these structures and so far working with the hypothesis that in the case of collagen or muscle fibers.

Moreover, the paleontologist said the value of the region of Inner Mongolia, northeast China, where the fossil was found and released today said that in the future should get much information from there because the amount of fossil find is "tremendous." Kellner

also stressed the importance of collaboration in Brazil to carry out investigations because, as the teacher, this country has some of the finest examples of fossils of pterosaurs.

The replica of the fossil find and reproduction of animal life and their wing membrane will be displayed from now at the National Museum of Rio de Janeiro. (Rio de Janeiro, EFE)

Journal Republic, August 5, 2009