A new species of duck-billed dinosaur has been discovered in Texas.
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According to scientists, the fossil of the prehistoric animal, named Aquilarhinus palimentus after it's aquiline nose and shovel-shaped jaw, was unearthed in the 1980's at the Big Bend National Park in southwest Texas, but researchers could not analyse it until recently because the bones were weathered and stuck together.
Lead author, Dr. Albert Prieto-Márquez from the Institut Català de Paleontologia Miquel Crusafont, near Barcelona, said in a release: ''This new animal is one of the more primitive hadrosaurids known and can therefore help us to understand how and why the ornamentation on their heads evolved, as well as where the group initially evolved and migrated from.
''Its existence adds another piece of evidence to the growing hypothesis, still up in the air, that the group began in the southeastern area of the US.''