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Amtocephale may be the oldest known pachycephalosaurid dinosaur, living about 100 to 84 million years ago.2
Its name means 'Amtgai head' because the first fossil was found at a place called Amtgai in Mongolia.1
Only one nearly complete skull bone, called a frontoparietal dome, has been found so far.2
The dome of Amtocephale had deep pits on top, which helped attach strong neck muscles.2
Unlike some later dome-headed dinosaurs, Amtocephale did not have holes (supratemporal fenestrae) in the top of its skull.2

Naamne ɓurɗe naamneede fii Amtocephale
?How big was Amtocephale?
It was a small dinosaur. Its skull dome was only about 5.3 centimetres (2.1 inches) long and 1.9 centimetres (0.75 inches) thick.35
?Is Amtocephale the oldest pachycephalosaur?
It may be the oldest known pachycephalosaurid. It lived about 100 to 84 million years ago, but scientists are not completely sure of the exact age.34
?What did Amtocephale eat?
Amtocephale was a plant-eater. Like other pachycephalosaurs, it ate leaves and other plants.3

Naamnu Rex fii Amtocephale
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Ngam annduɓe dino
- Innde ganndal
- Amtocephale
- Inndoowo
- Watabe et al. 20115
- Fedde
- Koye tiiɗɗe
- Fedde / clade
- Pachycephalosauridae5
- Fedde
- Ornithischia > Pachycephalosauria5
- Duuɓi kaaƴe
- 100 haa 84 miliyon duuɓi (Cenomanian / Santonian)5
- Cuuɗi kaaƴe
- Baynshire5
- Leyɗe
- Mongolia5
- Fosilji tawaaɗi
- 1 nder Paleobiology Database5
- Tawgol
- Amtocephale was named in 2011 by paleontologists Mahito Watabe, Khishigjav Tsogtbaatar, and Robert Sullivan based on a single fossil dome found in the Baynshire Formation of Mongolia.5
- Haa jooni ɓe ɗon yeddondira
- Scientists are not sure whether Amtocephale is the oldest pachycephalosaurid or just one of the earliest, because its skull features look like those of later, more advanced species.2
To haalaaji ummii
- PBDB Taxon (paleobiodb.org)
- (PDF) A NEW PACHYCEPHALOSAURID FROM THE BAYNSHIRE FORMATION (CENOMANIAN-LATE SANTONIAN), GOBI DESERT, MONGOLIA (academia.edu)
- Amtocephale (Wikipedia) (Wikipedia)
- A new pachycephalosaurid from the Baynshire Formation - Robert M ... (yumpu.com)
- Amtocephale in The Paleobiology Database (CC BY 4.0): duuɓi, nokkuuje, cuuɗi kaaƴe, pecce.
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