A group of Mexican paleontologists have discovered Monday tail of a dinosaur died more than 72 million years in Coahuila (north) in an extraordinary state of preservation, as announced by the National Institute of Anthropology and History (INAH ).
research team, formed by INAH archaeologists and students from the National Autonomous University of Mexico (UNAM), identified the fossil as a hadrosaur, also known as duckbill.
is a herbivore that reached up to 12 meters long and four meters high. The tail, five feet long, representing half of the animal.
The excavation was conducted in the village of General Cepeda, about 4,000, and lasted about 20 days. The people of village warned the INAH’s finding in June 2012. The researchers also found some dinosaur hip. The tail is fully articulated, researchers have detailed.
hadrosaurs could exceed up to 16 kilometers per hour speed of its worst contemporary predator, the Tyrannosaurus. Before the discovery of the fossil of a sample of 67 million years old, it was believed that they were “cows of the Cretaceous”. Recent research has shown that it was much more agile animal.
finding dinosaur tails is relatively rare, the researchers said INAH. The new discovery contributes to the study of some of the bone diseases that affected the dinosaurs, some with similarities to human suffering. Scientists have found, for example, suffering from tumors and arthritis.
Severaldinosaur remains have been found in Coahuila and other northern states of Mexico. “We have a rich paleontological” said Aguilar told Reuters. The site of the find is a few miles from two of the most important paleontological sites in northern Mexico.
The researcher said that during the Cretaceous, which ended more than 65 million years, much of north central Mexico were coasts. This has enabled the discovery excavators dinosaur remains both terrestrial and marine. The good state of preservation is precisely because the remains were buried at sea surfaces.
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