Tuesday, April 19, 2011


The amazing innovation of a fossil of a sharp-toothed creature that lurked in what is now the western U.S. more than 200 million years ago is satisfying a gap in dinosaur growth.The small snout and angled front teeth of the find — Daemonosaurus, chauliodus — had not at all been seen in a Triassic era dinosaur, said by Hans-Dieter Sues of the Smithsonian’s National Museum of Natural History. Sues and colleagues detail the discovery in previous edition of the British journal events of the Royal Society B. Sues, guardian of vertebrate paleontology at the museum, said the discovery helps fill the evolutionary break among the dinosaurs that lived in what is at present Argentina and Brazil regarding 230 million years ago and the afterward theropods like the famous Tyrannosaurus Rex

Features of the skull and neck of Daemonosaurus specify it was midway between the most basic known predatory dinosaurs from South America and more superior theropods, said by Sues. “One such characteristic is the occurrence of cavities on some of the neck vertebrae associated to the formation of the respiratory system.”Daemonosaurus was exposed by Ghost Ranch, N.M., and a familiar fossil site popular for the thousands of fossilized skeletons originate there, especially the tiny dinosaur Coelophysis. Ghost Ranch was further newly the home of artist Georgia O’Keeffe, who was known to appointment the archaeological residence under way there, Sues renowned. Having established only the head and neck of sharp-toothed Daemonosaurus, the researchers are not sure of its accurate size but they wonder it would have been close to that of a tall dog. Its name is beginning the Greek words “daimon” importance evil spirit and “sauros” importance lizard or reptile. Chauliodus is resultant from the Greek word for “buck-toothed” and refers to the species’ big one-sided front teeth.

 “It looks to be a indicate spirit,” commented paleontologist Paul Sereno of the University of Chicago, who was not component of the investigate team. I cannot stay to see if they get any further of the skeleton. This fits in pretty nicely among the dinosaur groups, Sereno said that, even though its face is dissimilar anything that must have been predictable in these early dinosaurs, which tended to have more extended snouts.

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