Tylocephale

Say it like this: “TIE-lo-SEF-a-lee”

Tylocephale gilmorei

Tylocephale ate plants and walked on two legs. It lived in the Late Cretaceous. Bones have been found in Mongolia.

Quiz me on Tylocephale

When: Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
Named in: 1974 · Maryańska, T.; Osmólska, H.
Hip height: Not established
Length: 2 m · 7 ft
Weight: 40 kg · 88 lb
Found in: Mongolia · Baruungoyot
Food and walking: Herbivore · Two legs
Kind: dome-headed dinosaur · Pachycephalosaur
Family branch: Pachycephalosaurinae

The story in short

Tylocephale was formally named in 1974 by T. Maryańska and H. Osmólska.

Fossils referred to Tylocephale date to the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from Mongolia, including the Baruungoyot Formation. It was a herbivore and walked on two legs.

Published estimates put Tylocephale at a length near 2 m and a body mass around 40 kg.

On the family tree it sits in Pachycephalosaurinae, among the dome-headed dinosaurs.

Close relatives

Acrotholus

Acrotholus audeti

Late Cretaceous (Santonian) · roughly 85.7 to 83.6 million years ago

Alaskacephale

Alaskacephale gangloffi

Late Cretaceous (Maastrichtian) · roughly 72.2 to 66 million years ago

Brontotholus

Brontotholus harmoni

Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago