Edmontosaurus is a genus of saurolophine hadrosaurid which was found in the Arctic of Alaska. It contains the species Edmontosaurus regalis. Its name is derived from Inupiat, meaning 'Edmonton lizard'.
In the TV programme
In the show, a herd of Edmontosaurus was shown in Alaska, stalked by the local pack of Troodon. When night fell, the Troodon attacked the herd, separating one of the juveniles, before attacking it from all sides. An adult Edmontosaurus came to rescue it, driving away the theropods, killing one of them in the process. In the morning the juvenile Edmontosaurus had died of it's injuries and left behind for the Troodon to eat.
A 2015 study refer to the Edmontosaurus that appear in this episode as a new genus Ugrunaaluk. However, a 2017 study from Hai Xing and colleagues, regard it as a nomen dubium indistinguishable from Edmontosaurus.
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