Amtocephale Facts
| Diet | Herbivore |
| Height | 1.2m |
| Length | 2.5m |
| Weight | 45 kg |
| Environment | Land |
| Era | Cretaceous |
| Period | Early Cretaceous |
| Type | Pachycephalosaur |
| Location | Mongolia |

| Diet | Herbivore |
| Height | 1.2m |
| Length | 2.5m |
| Weight | 45 kg |
| Environment | Land |
| Era | Cretaceous |
| Period | Early Cretaceous |
| Type | Pachycephalosaur |
| Location | Mongolia |
Amtocephale was a small pachycephalosaur that lived in what is now Mongolia during the Early Cretaceous period, approximately 100.5 million years ago. This fascinating dinosaur roamed the ancient landscapes of the southern Gobi Desert, making it one of the earlier members of the dome-headed dinosaur group.
As a pachycephalosaur, Amtocephale possessed the characteristic thickened skull roof that defined its family, though its dome was likely less pronounced than later relatives like Pachycephalosaurus. Standing about 1.2 metres tall at the hip and measuring roughly 2.5 metres in length, it was a relatively small dinosaur that weighed around 45 kilograms. Its bipedal stance allowed it to move quickly across the Cretaceous terrain on powerful hind legs.
Like other pachycephalosaurs, Amtocephale was herbivorous, using its small, leaf-shaped teeth to process plant material. Its diet likely consisted of ferns, cycads, and other low-growing vegetation common in its Early Cretaceous ecosystem. The dinosaur's relatively long tail helped provide balance whilst running and may have been important for communication with other members of its species.
Amtocephale represents an important piece in understanding the early evolution of pachycephalosaurs, showing us what these distinctive dome-headed dinosaurs looked like millions of years before their more famous descendants appeared in North America.
Amtocephale had a moderately thickened skull roof forming a low dome, typical of early pachycephalosaurs but less pronounced than later species. Its small, sharp teeth were well-suited for processing plant material, and it possessed the characteristic bipedal stance with strong hind limbs and a long, stiffened tail for balance.
Amtocephale likely lived in small herds, foraging for low-growing plants across the ancient Gobi landscape. As a relatively small dinosaur, it probably relied on speed and agility to escape from predators, using its powerful hind legs to dart quickly through the vegetation.
| Phylum | Chordata |
| Class | Ornithischia |
| Family | Pachycephalosauridae |
| Genus | Amtocephale |
Amtocephale was first described by Maryańska and Osmólska in 2011. The original fossils were discovered at Bayankhongor Province, southern Gobi Desert, Mongolia.