Scientists have discovered an enormous species of duck-billed dinosaur that lived in what is now New Mexico about 75 million years ago.
The dinosaur, Ahshislesaurus wimani, likely had a flat head and a bony crest low on its snout, researchers revealed in a study. The findings, which is due to be published in the Bulletin of the New Mexico Museum of Natural History and Science, suggest that duck-billed dinosaurs, or hadrosaurids, were more diverse and overlapping during the last 20 million years of the Cretaceous period (145 million to 66 million years ago) than previously thought.
