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Chithunzi choseketsa cha Acrotholus
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Acrotholus

Dzina limatanthauza: “highest dome”1
Ankadya: ZomeraMitu yozunguliraKumapeto kwa Kretase

Acrotholus was a small, plant-eating dinosaur with a thick, bony dome on its head. It lived about 84 million years ago in what is now Canada. This dome might have been used for head-butting contests between rivals!12

Ankakhala
zaka 86 mpaka 84 miliyoni zapitazo4
Kumapeto kwa Kretase
Mafosili apezeka ku
Fossils were found in the Milk River Formation in southern Alberta, Canada, near Writing-On-Stone Provincial Park.21
Utali
1.8288 m (6 ft)3
Kulemera
40 kg (88 lb)312
Liwiro lalikulu kwambiri
pafupifupi 44 km/h (27 mph)
Kuthamanga, kuyerekeza

Ankakhala liti?

Triasiki
Jurasiki
Kretase
Zaka 252 miliyoni zapitazo20114566, asteroidi

Anali wamkulu bwanji?

Anali wautali bwanji?

Acrotholus utali wa pafupifupi 1.8288 m (6 ft)Galu pafupifupi 1 m (3.3 ft)Njinga ya munthu wamkulu pafupifupi 1.8 m (5.9 ft)Galimoto pafupifupi 4.5 m (15 ft)

Ankalemera bwanji?

wolemera ngati agalu 2
wautali ngati amphaka a pakhomo 4 otsatizana mphuno ndi mchirawautali ngati nthochi 10 zotsatizanawolemera ngati amphaka a pakhomo 10wolemera ngati mavwende 8wolemera ngati ana a sukulu ya mkaka 2wolemera ngati ana a sukulu 1akanatha kuthamanga mamita 100 m'masekondi 8.2 (munthu waliwiro kwambiri amafunika 9.6)

Acrotholus anali wamkulu bwanji poyerekeza ndi IWEYO?

Ndi masamu chabe mu msakatuli wako. Palibe chimene chimasungidwa kapena kutumizidwa kwina kulikonse.

Anali ndi liwiro lotani?

zinthu zosangalatsa

Mfundo zosangalatsa

1

Acrotholus is the oldest known pachycephalosaur from North America, and possibly the world.2

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

3

The dome was fully developed even though Acrotholus lived earlier than other pachycephalosaurs, showing that this feature evolved earlier than scientists thought.2

4

The name Acrotholus means 'highest dome' in Greek, referring to its thick skull roof.1

5

The species name audeti honors Roy Audet, a rancher who allowed scientists to dig on his land where the first skull was found.12

6

Acrotholus had a smooth dome without the bumps or grooves seen in some other pachycephalosaurs, which suggests the known fossils are from adults.2

Chopangidwa ndi AIChithunzi cha Acrotholus chopangidwa ndi AI
Chithunzi cha momwe Acrotholus mwina ankaonekera, chopangidwa ndi kompyuta kuchokera pa zomwe asayansi amadziwa. Ndi kungoyerekeza: nyama yeniyeniyo mwina inkaoneka mosiyana, ndipo palibe amene akudziwa mitundu yake yeniyeni.
mwafunsa

Mafunso ofunsidwa kwambiri okhudza 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

Wothetsa nthano zabodza

Nthano: Some people think Acrotholus used its dome to butt heads like bighorn sheep.

Zoona: 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

Kwa akatswiri a madino

Dzina la sayansi
Acrotholus
Anapatsidwa dzina ndi
Evans et al. 20134
Gulu
Mitu yozungulira
Banja / kladi
Pachycephalosauridae4
Magawidwe a sayansi
Ornithischia > Pachycephalosauria4
Zaka za miyala
zaka 86 mpaka 84 miliyoni (Santonian)4
Mapangidwe a miyala
Milk River4
Mayiko
Kanada4
Zolemba za mafosili
1 mu The Paleobiology Database4
Kupezeka
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
Akukambiranabe
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

Kumene mfundo zimachokera

  1. Acrotholus (en.wikipedia.org)
  2. The oldest North American pachycephalosaurid and the hidden diversity of small-bodied ornithischian dinosaurs | Nature Communications (nature.com)
  3. Study of new 'bone-head' hints at higher diversity of small dinosaurs | EurekAlert! (eurekalert.org)
  4. Acrotholus in The Paleobiology Database (CC BY 4.0): zaka, malo, mapangidwe a miyala, magawidwe a sayansi.

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