Pachyrhinosaurus

Pachyrhinosaurus, meaning "Thick-nosed lizard", was a medium sized Cerotopsian from the Late Cretaceous Period of North America about 72-70 million years ago. It's most unique feature was it's huge, bony mass, or bump, on its face. It was about 20 feet long and about 6 feet tall. It was closely related to Chasmosaurus.

More real-life information: Pachyrhinosaurus at Wikipedia.

Jurassic Park Series
Pachyrhinosaurus has not appeared in any of the novels or the movies. Merchandise of this dinosaur in the Jurassic Park franchise hasn't been made either. Pachyrhinosurus does, however, appear in the Papo toys.

Jurassic Park inspired games
Pachyrhinosaurus is nr. 103 of the Herbivore Threes that can be created in Jurassic Park III: Park Builder.

Toy lines
Although most of the Papo dinosaurs are inspired by their appearance in the Jurassic Park films, the Pachyrhinosaurus wasn't. The item was released in 2010 and hand painted.