Styracosaurus was a dinosaur that lived in the Cretaceous Period about 75 million years ago. It had a single horn on its snout and at least eight horns on its neck frill. It was related to the later Triceratops. It appeared in Disney's 2000 CGI film Dinosaur and its corresponding ride, DINOSAUR.
Forrest Woodbush from The Good Dinosaur is a Styracosaurus. Oddly enough, however, he has the brow horns of a Triceratops as well as the nasal horn of a Styracosaurus.
Styracosaurus appears in DINOSAUR at Disney's Animal Kingdom where it is the first dinosaur encountered. While the ride was called "Countdown to Extinction", a model of Styracosaurus was shown on the exterior, serving as the mascot of the Dino Institute and appearing on its logo.
In the original story for Dinosaur conceived and pitched by Phil Tippett and Paul Verhoeven in 1988, the main protagonist would have been a Styracosaurus named Woot.
Styracosaurus is Imagineer Joe Rohde's favorite dinosaur species and this was the primary reason for its selection as the Dino Institute mascot and fountain statue before Countdown to Extinction's rebranding to Dinosaur.
The carcass of Styracosaurus in the early concept art design for DINOSAUR
A Styracosaurus in DINOSAUR
Styracosaurus concept art by Ricardo Delgado
Early original concept art for Dinosaur by Mark Hallett
Early original storyboards for Dinosaur in 1991 by Pete Von Sholly