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Saturday, April 23, 2011
The past encaged on a crystalline stone
PERU – In Chiclayo (a town located at northwest of Peru, capital of Lambayeque region, one of the 25 political divisions of the country) scientists found several examples of small insects preserved in amber stones. Researchers believe that these tiny specimens lived around 20 millions of years ago. Were – therefore, contemporary of the dinosaurs and, they passed, at least, for a glaciation.
In the stones of amber insects like Psocoptera, Diptera, Coleoptera, Hemiptera and spiders, as well as spores, pollen fossils, and even a drop of blood and hair of rodents, all of these fragments of the past remained preserved.
The discovery was made on a beach in far north of Peru by paleontologists from the Paleontological Museum Meyer-Honningen. The team found more than a hundred stones, among the river sediments, but still could not identify the majority. Some of the insects are nor even known, like the , long-legged mosquito Zancudo or a wasp, that has the stinger in the front of its body. These are possibly species already extinct that indicate changes in the flora and fauna of the area.
However, the Peruvian museum has invited Austrian scientists to assist in the study of fossils and new expedition will be made in the Santiago River, for try to uncover new clues about the evolution of the Amazon.
SOURCE: Âmbar alberga fósseis de insectos extintos. IN Ciência Hoje/Pt, published in 04/21/2011 [http://www.cienciahoje.pt/index.php?oid=48649&op=all]