Named By: T. Maryanska and H. Osmolska - 1974.
Classification: Chordata, Reptilia, Dinosauria, Ornithischia, Pachycephalosauria, Pachycephalosauridae.
Species: T. gilmorei (type).
Size: About 1.4 meters long.
Known locations: Mongolia - Barun Goyot Formation.
Time period: Campanian of the Cretaceous.
Fossil representation: Partial remains of an individual.
At 1.4 meters long, Tylocephale was towards the smaller end of the size scale for a pachycephalosaur. Despite this, Tylocephale managed to evolve the tallest head dome of any currently known pachycephalosaur genera. Tylocephale also likely shared its habitat with the larger pachycephalosaur Prenocephale.
- Pachycephalosauria, a new suborder of ornithischian dinosaurs. - T. Maryanska & H. Osmolska - 1974.