Tylocephale Facts
Pronunciation: TIE-low-SEF-ah-lee
Name meaning: Swollen Head
| Diet | Herbivore |
| Height | 1.5m |
| Length | 2.5m |
| Weight | 50 kg |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Pachycephalosaur |
| Location | Mongolia |
Tylocephale was a small pachycephalosaur that roamed the dusty plains of what is now Mongolia during the Late Cretaceous period, approximately 83.6 million years ago. Like other pachycephalosaurs, this plant-eating dinosaur was distinguished by its dramatically thickened skull dome, which gave it its name meaning 'swollen head'.
Standing about 1.5 metres tall and measuring roughly 2.5 metres in length, Tylocephale was a relatively modest-sized member of the dome-headed dinosaur group. It walked on two powerful hind legs and likely used its strong beak and small, leaf-shaped teeth to strip vegetation from plants. The creature's most striking feature was its thick, bony skull cap, which was surrounded by small spikes and knobs that would have given it a rather fearsome appearance despite its peaceful herbivorous lifestyle.
Tylocephale inhabited the arid environments of the ancient Gobi Desert region, where it would have browsed on low-growing plants, ferns, and possibly fruits. Its bipedal stance allowed it to move quickly across the landscape, potentially using speed to escape from predators. The purpose of its distinctive skull dome remains a subject of scientific debate, with theories ranging from head-butting displays to species recognition.
Our knowledge of Tylocephale comes from a single partial skull and jaw discovered during a Polish-Mongolian expedition in 1971, making it one of the more mysterious members of the pachycephalosaur family.
What made Tylocephale distinctive?
Tylocephale possessed a dramatically thickened skull dome surrounded by small spikes and tubercles, giving it a distinctive crown-like appearance. Its skull was relatively high and narrow compared to other pachycephalosaurs, with the dome being particularly pronounced even for a member of this dome-headed dinosaur group.
Behaviour
Tylocephale likely lived in small herds, browsing on low vegetation across the ancient Mongolian plains. The thick skull dome may have been used in head-butting contests for dominance or mating rights, though some scientists suggest it was primarily for display purposes to intimidate rivals or attract mates.
Discovery
Tylocephale was first described by Teresa Maryańska and Halszka Osmólska in 1974. The original fossils were discovered at Barun Goyot Formation, Gobi Desert, Mongolia.
Tylocephale FAQ
What did Tylocephale eat?
Tylocephale was a herbivore that fed on plants, ferns, leaves, and possibly fruits. It used its strong beak to strip vegetation and had small, leaf-shaped teeth perfect for processing plant material. As a browser, it likely fed on low-growing plants across the ancient Mongolian landscape.
How big was Tylocephale?
Tylocephale was a relatively small dinosaur, standing about 1.5 metres tall at the hip and measuring roughly 2.5 metres in total length. It weighed approximately 50 kilograms, making it much smaller than famous dinosaurs like
Tyrannosaurus rex but similar in size to a large sheep or small pony.
When did Tylocephale live?
Tylocephale lived during the
Late Cretaceous period, specifically during the Maastrichtian stage approximately 83.6 million years ago. This was towards the end of the age of dinosaurs, roughly 17 million years before the mass extinction event that ended the Cretaceous period.
Where was Tylocephale found?
Tylocephale fossils were discovered in Mongolia, specifically in the Barun Goyot Formation of the Gobi Desert. The specimen was unearthed in 1971 during a Polish-Mongolian scientific expedition to this fossil-rich region of Central Asia.
How do you pronounce Tylocephale?
Tylocephale is pronounced 'TIE-low-SEF-ah-lee'. The name breaks down into syllables as Ty-lo-ceph-a-le, with emphasis on the first syllable 'TIE'.
What does Tylocephale mean?
Tylocephale means 'swollen head' in Greek, referring to the dinosaur's most distinctive feature - its dramatically thickened skull dome. This name perfectly describes the enlarged, bulbous bone structure on top of its head that characterised this pachycephalosaur.
How fast could Tylocephale run?
The running speed of Tylocephale is not known with certainty. However, as a bipedal dinosaur with long, powerful hind legs, it was likely capable of running fairly quickly to escape predators, possibly reaching speeds similar to modern large birds or small mammals.
What type of dinosaur was Tylocephale?
Tylocephale was a pachycephalosaur, one of the dome-headed, plant-eating dinosaurs that belonged to the larger group Ornithischia. More specifically, it was a member of the family Pachycephalosauridae, characterised by their dramatically thickened skull roofs and bipedal stance.
Was Tylocephale related to birds?
Tylocephale was not closely related to birds. As an ornithischian dinosaur, it belonged to a different major group from the theropod dinosaurs that gave rise to modern birds. However, like all dinosaurs, Tylocephale shared a common ancestor with birds much earlier in evolutionary history.
How many Tylocephale fossils have been found?
Only one Tylocephale specimen has been discovered - a partial skull and associated jaw found in Mongolia in 1971. This single fossil is the only evidence we have of this dinosaur, making it one of the rarer and more mysterious pachycephalosaurs known to science.
