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Ikhadi ledayinaso No. 0056 kwe-2 027

Alaskacephale

Igama lithetha: “Alaska head”1

Yayitya: IzityaloIintloko-ngqukuvaiCretaceous yamva

Alaskacephale was a small, dome-headed dinosaur that lived in the cold Arctic of ancient Alaska. It had a thick, bony skull with two rows of bumps along the back of its head. This plant-eater was one of the few dinosaurs that lived near the North Pole.1

Yaphila

72 ukuya ku-66 izigidi zeminyaka eyadlulayo2

iCretaceous yamva

Iifosili zifunyenwe:

North Slope of Alaska, USA, in the Prince Creek Formation1 2

Ubude

1.5 m (4.9 ft)1

Ubunzima

10 kg (22 lb)1

Esona santya siphezulu

malunga ne-33 km/h (21 mph)

Ukubaleka, uqikelelo

Yaphila nini?

iTriassic

iJurassic

iCretaceous

Izigidi ezingama-252 zeminyaka eyadlulayo20114566, i-asteroyidi

Yayinkulu kangakanani?

Yayinde kangakanani?

Yayinzima kangakanani?

inzima njengeekati zasekhaya ezingama-2.5

inde njengeekati zasekhaya ezingama-3, impumlo ukuya emsileniinde njengeebhanana ezingama-8 zilandelelanainzima njengeebhanana ezingama-83ibinokubaleka iimitha ezili-100 ngemizuzwana engama-11 (oyena mntu ukhawulezayo udinga i-9,6)

Alaskacephale wayemkhulu kangakanani xa ethelekiswa NAWE?

Yimathematika nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwe naphi na.

Yayikhawuleza kangakanani?

Umntu ohambayo malunga ne-5 km/h (3 mph)

Umntwana ekhwele ibhayisikile malunga ne-12 km/h (7 mph)

Alaskacephale malunga ne-33 km/h (21 mph)

Ihashe elibaleka ngamandla malunga ne-65 km/h (40 mph)

Ingwenkala malunga ne-100 km/h (62 mph)

izinto ezimnandi

Iinyani ezimnandi

Alaskacephale lived about 70 to 69 million years ago, during the Maastrichtian stage of the Late Cretaceous.1

Only one fossil of Alaskacephale has been found: a piece of skull bone called a squamosal.1

The skull had two rows of bony bumps that helped scientists tell it apart from other dome-headed dinosaurs.1

Alaskacephale lived in a cold Arctic environment with winter darkness for 120 days and temperatures as low as -2°C (28°F).1

It shared its home with other dinosaurs like the horned Pachyrhinosaurus, the duck-billed Edmontosaurus, and the tyrannosaur Nanuqsaurus.1

Alaskacephale was about half the size of its relative Pachycephalosaurus, making it one of the smaller pachycephalosaurs.1

Umfanekiso owenziwe yi-AI: Alaskacephale — Umfanekiso owenziwe yi-AI obonisa indlela Alaskacephale esenokuba wayekhangeleka ngayo, wenziwe yikhompyutha ngokwento eyaziwa zizazinzulu. Kukuqikelela nje: esona silwanyana sinokuba sasikhangeleka ngenye indlela, kwaye akukho mntu waziyo imibala yaso yokwenyani.

ubuzile

Eyona mibuzo ibuzwa kakhulu: Alaskacephale

?How big was Alaskacephale?

About 1.5 metres long and 10 kilograms, based on a similarly sized relative. It was one of the smaller pachycephalosaurs.1

?What did Alaskacephale eat?

It was a plant-eater, like all dome-headed dinosaurs.1

?When did Alaskacephale live?

It lived about 72 to 71 million years ago, during the Late Cretaceous (Maastrichtian stage).1

?Is Alaskacephale a dinosaur?

Yes, it is a dome-headed dinosaur (a pachycephalosaur).1

?Why did Alaskacephale have a thick skull?

The thick, bony dome on its skull might have been used for head-butting or for display, but scientists are not sure.1

?Did Alaskacephale have feathers?

Nobody knows for sure. No fossil feathers have been found with Alaskacephale, and it is not known if pachycephalosaurs had feathers.1

Kwiingcali zeedayinaso

Igama lenzululwazi: Alaskacephale
Inikwe igama ngu:: Sullivan 20062
Iqela: Iintloko-ngqukuva
Usapho / iclade: Pachycephalosauridae2
Ukuhlelwa: Ornithischia > Pachycephalosauria2
Ubudala bamatye: 72 ukuya ku-66 izigidi zeminyaka (Maastrichtian)2
Izakhiwo zamatye: Prince Creek2
Amazwe: iUSA2
Iirekhodi zeefosili: 1 kwi-Paleobiology Database2
Ukufunyanwa: The only fossil was found in 1999 by a University of Alaska expedition on the Colville River. It was named Alaskacephale gangloffi in 2006 by paleontologist Robert Sullivan, honoring the earlier researcher Roland Gangloff.1
Kusaxoxwa ngayo: Scientists are not sure exactly how big Alaskacephale was, because only a skull fragment has been found.1

Apho iinyani zivela khona

Alaskacephale (en.wikipedia.org)
Alaskacephale in The Paleobiology Database (CC BY 4.0): ubudala, iindawo, izakhiwo zamatye, ukuhlelwa.

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