New species of duck-billed dinosaur found

A new species of duck-billed dinosaur in US that roamed the Earth about 79 million years ago by a professor at Montana State University (MSU).

• The new species neatly fills a gap that had existed between an ancestral formwith no crest and a descendant with a larger crest, providing key insight into the evolution of elaborate display structures in these gigantic extinct herbivores.
• Elizabeth Freedman Fowler and MSU paleontologist Jack Horner named the dinosaur Probrachylophosaurus bergei and suggest it is a previously missing link between a preceding species, Acristavus, which lived about 81 million.
• The research was published in the journal PLOS ONE.