Serendipaceratops is a type of dinosaur that lived about 85 million years ago, during the Late Cretaceous period. It was a large, herbivorous dinosaur, meaning it only ate plants. It was very long and its neck was covered with big, bony plates. It had a long, duck-like beak that it used to eat leaves and other plants. It also had two big horns on its head. Serendipaceratops got its name from a phrase that means to find something good by accident.