Prenoceratops, meaning “prone-horned face”, is a genus of ceratopsian dinosaur from the Campanian stage of the Late Cretaceous Period (83 to 74 million years ago. Its fossils have been discovered in the Two Medicine Formation in the US state of Montana. It was first described by Brenda J. Chinnery in 2004.

Prenoceratops belonged to a group of herbivorous dinosaurs with parrot-like beaks. It is closely related to Leptoceratops, which it predates by several million years. It has a lower, more sloping head than Leptoceratops.

Being a herbivore, Prenoceratops most likely fed on ferns, cycads and conifers, as flowering plants were geographically limited during that era. It would have used its sharp beak to bite leaves and needles off the plants.

The type species is P. pieganensis. Prenoceratops is the only basal neoceratopsian known from a bone bed.

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