Dinosaurs · Pachycephalosaur

Prenocephale

Say it preen-oh-keff-ah-lee. The name means ‘sloping head’.

Prenocephale beside a person 1.75 m tall. Ticks mark every metre.Body shape drawn for this site, showing the general build of pachycephalosaurs

Length: 2.4 m
Diet: Plant-eater
When: Late Cretaceous80 to 66 million years ago
Fossils found in: Mongolia
Named by: Maryańska and Osmólska (1974)
Family tree: Dinosauria › Ornithischia › Neornithischia › Cerapoda › Marginocephalia › Pachycephalosauria › Pachycephalosauridae

Where Prenocephale sits in the age of dinosaurs.Periods from the ICS chart; dinosaur dates from the Natural History Museum

Pachycephalosaurs. Two-legged plant-eaters with thick, domed skulls. See all 8

Lived at the same time

Anserimimus · same country
Borogovia · same country
Microceratus · same country
Mononykus · same country
Alectrosaurus · same country
Alioramus · same country
Avimimus · same country
Citipati · same country

Other pachycephalosaurs

Goyocephale Late Cretaceous
Stegoceras Late Cretaceous
Tylocephale Late Cretaceous
Homalocephale Late Cretaceous
Pachycephalosaurus Late Cretaceous
Stygimoloch Late Cretaceous
Dracorex Late Cretaceous

Source: Prenocephale in the Natural History Museum Dino Directory, read 12 November 2026. Sizes are the museum's estimates for a typical adult. "Lived at the same time" lists dinosaurs whose dates overlap, which does not always mean they met.