Hadrosaurs are not always the most well represented of dinosaur groups, but they were among the most widespread and common of all known dinosaur clades. Their lack of representation is most likely ...

Towering high above any of its relatives or namesakes, this caenagnathid dinosaur, unrelated to the likes of Velociraptor and Utahraptor, was a colossus of the Iren Dabasu Formation. Discovered in ...