Ban dino nga? Kiis
Xeexu dino
Rawante dino
Fo yu ndaw yu dino
Albomu sitikeer
Limu TOP yu dino
Bett ma!Kañ la dundoon?
Naka la réyoon?
Naka la guddoon?
Naka la diisoon?
gudd ni 4 muusu kër, bakkan ba geen🍌gudd ni 10 banaana yu ñu topp-toppalediis ni 10 muusu kër🍉diis ni 8 xaal🧸diis ni 2 xale yu maternel🎒diis ni 1 xale yu lekkool🏃mënoon na daw 100 meetar ci 8,2 segond (nit ki gën a gaaw dafay soxla 9,6)Naka la Acrotholus réyoon, bu ñu ko méngalee ak YAW?
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Naka la gaawoon?
Xibaar yu neex
Acrotholus is the oldest known pachycephalosaur from North America, and possibly the world.2
Its dome was very thick, up to 55 millimetres (about 2 inches) above the brain, which is almost half the total length of the dome.2
The dome was fully developed even though Acrotholus lived earlier than other pachycephalosaurs, showing that this feature evolved earlier than scientists thought.2
The name Acrotholus means 'highest dome' in Greek, referring to its thick skull roof.1
The species name audeti honors Roy Audet, a rancher who allowed scientists to dig on his land where the first skull was found.12
Acrotholus had a smooth dome without the bumps or grooves seen in some other pachycephalosaurs, which suggests the known fossils are from adults.2
Laaj yi ñu gën a laaj ci Acrotholus
?How big was Acrotholus?
Acrotholus was a small dinosaur, weighing 40 kg (88 lb) or less. Its skull dome was about 55 mm (2.2 in) thick.12
?What did Acrotholus eat?
Acrotholus was a plant-eating dinosaur, like other pachycephalosaurs.1
?Why did Acrotholus have a dome on its head?
The dome was probably used for head-butting contests between rivals, though scientists debate exactly how they used it.1
?When did Acrotholus live?
Acrotholus lived about 84 to 83.5 million years ago, during the Late Cretaceous period.1
Ku tas léeb yu dul dëgg
Léeb: Some people think Acrotholus used its dome to butt heads like bighorn sheep.
Dëgg: Scientists are not sure. The dome might have been for display or for fighting, but there is no direct evidence of head-butting in Acrotholus.1
Ngir ñi xam dino lool
- Turu xam-xam
- Acrotholus
- Ku ko tudde
- Evans et al. 20134
- Kurél
- Bopp yu wërngel
- Njaboot / klad
- Pachycephalosauridae4
- Klasifikasiyoŋ
- Ornithischia > Pachycephalosauria4
- Màggaayu doj yi
- 86 ba 84 milyoŋ at (Santonian)4
- Formasiyoŋi doj
- Milk River4
- Réew yi
- Kanadaa4
- Fosil yu ñu gis
- 1 ci The Paleobiology Database4
- Gisees
- The first fossil, a nearly complete skull dome, was found on Roy Audet's ranch in Alberta, Canada, and was named by David Evans and colleagues in 2013.12
- Ñu ngi koy werante ba tey
- Scientists still debate whether the dome was used for fighting between males or for showing off to mates, since no complete skeleton has been found.1
Fa xibaar yi jóge
- Acrotholus (en.wikipedia.org)
- The oldest North American pachycephalosaurid and the hidden diversity of small-bodied ornithischian dinosaurs | Nature Communications (nature.com)
- Study of new 'bone-head' hints at higher diversity of small dinosaurs | EurekAlert! (eurekalert.org)
- Acrotholus in The Paleobiology Database (CC BY 4.0): at, béréb yi, formasiyoŋi doj, klasifikasiyoŋ.
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Pachycephalosaurus
Stegoceras
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Spinosaurus
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