Alaskacephale Facts
Pronunciation: ah-LAS-kah-SEF-ah-lee
Name meaning: Alaska head
| Diet | Herbivore |
| Height | 1m |
| Length | 2m |
| Weight | 50 kg |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Pachycephalosaur |
| Location | Alaska, USA |
Alaskacephale was a pachycephalosaur that lived approximately 72 million years ago during the Late Cretaceous period in what is now northern Alaska. This herbivorous dinosaur belonged to a group known for their distinctive dome-shaped skulls, though our knowledge of Alaskacephale is unfortunately limited due to the fragmentary nature of the fossil evidence.
The only known specimen of Alaskacephale consists of a single squamosal bone—part of the skull—discovered in 1999 within the Prince Creek Formation. This fossil site has yielded numerous Arctic dinosaur remains, making it one of the most important windows into Late Cretaceous polar ecosystems. Based on comparisons with related pachycephalosaurs, Alaskacephale would have been a relatively small, bipedal dinosaur, likely standing about 1 metre tall and measuring approximately 2 metres in length.
As a pachycephalosaur, Alaskacephale would have possessed the characteristic thickened skull roof that gave this group their name, meaning 'thick-headed lizards'. These dinosaurs were herbivores, using their beak-like mouths and small teeth to process plant material. Living in the Arctic region during the Cretaceous, Alaskacephale would have experienced seasonal variations in daylight and temperature, though the climate was considerably warmer than modern Alaska.
The formal description and naming of Alaskacephale in 2006 added another piece to the puzzle of polar dinosaur diversity, demonstrating that pachycephalosaurs successfully adapted to high-latitude environments during the Late Cretaceous period.
What made Alaskacephale distinctive?
Known only from a squamosal bone, making specific distinguishing features uncertain. As a pachycephalosaur, it would likely have possessed a thickened, dome-shaped skull roof. The bone shows characteristics typical of the pachycephalosaur family.
Behaviour
Behaviour is largely speculative due to limited fossil evidence. As a pachycephalosaur, Alaskacephale likely lived in herds and may have engaged in head-butting or head-pushing behaviours for dominance or mating displays. It would have been adapted to the seasonal extremes of Arctic living during the Cretaceous period.
Discovery
Alaskacephale was first described by Robert M. Sullivan in 2006. The original fossils were discovered at Prince Creek Formation, northern Alaska, USA.
Alaskacephale FAQ
What did Alaskacephale eat?
Alaskacephale was a herbivore that fed on the plants available in
Late Cretaceous Alaska. Like other pachycephalosaurs, it would have used its beak-like mouth and small teeth to process ferns, cycads, conifers, and early flowering plants that grew in the polar forests of the time.
How big was Alaskacephale?
Based on comparisons with related pachycephalosaurs, Alaskacephale is estimated to have been about 1 metre tall at the hip and approximately 2 metres long, weighing roughly 50 kilograms. However, these estimates are uncertain due to the limited fossil material available.
When did Alaskacephale live?
Alaskacephale lived during the
Late Cretaceous period, specifically during the Maastrichtian stage approximately 72.2 million years ago. This was near the end of the age of dinosaurs, just before the mass extinction event.
Where was Alaskacephale found?
Alaskacephale was discovered in northern Alaska, USA, specifically in the Prince Creek Formation. This fossil site is located on Alaska's North Slope and represents one of the most northerly dinosaur-bearing rock formations in the world.
How do you pronounce Alaskacephale?
Alaskacephale is pronounced 'ah-LAS-kah-SEF-ah-lee'. The name breaks down into 'Alaska' (the US state where it was found) and 'cephale' (meaning head in Greek), referring to the characteristic thick skull of pachycephalosaurs.
What does Alaskacephale mean?
Alaskacephale means 'Alaska head', combining 'Alaska' (the state where it was discovered) with the Greek word 'cephale' meaning head. This name reflects both its geographical origin and its membership in the thick-skulled pachycephalosaur group.
How fast could Alaskacephale run?
The running speed of Alaskacephale is unknown due to the limited fossil evidence. However, related pachycephalosaurs were likely capable runners, as they were bipedal dinosaurs with long legs relative to their body size.
What type of dinosaur was Alaskacephale?
Alaskacephale was a pachycephalosaur, a member of the Pachycephalosauridae family. These were herbivorous, bipedal dinosaurs characterised by their distinctive dome-shaped, thickened skull roofs. They belonged to the larger group of ornithischian or 'bird-hipped' dinosaurs.
Was Alaskacephale related to birds?
As an ornithischian dinosaur, Alaskacephale was not directly ancestral to modern birds. Birds evolved from theropod dinosaurs, which belonged to the other major dinosaur group, the saurischians. However, Alaskacephale shares a common dinosaurian ancestor with birds.
How many Alaskacephale fossils have been found?
Only one fossil specimen of Alaskacephale has been found—a single squamosal bone (part of the skull) discovered in 1999. This limited material makes it difficult to understand the full anatomy and characteristics of this Arctic pachycephalosaur.
