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Ikhadi ledayinaso No. 1238 kwe-2 027

Nanuqsaurus

Igama lithetha: “polar bear lizard”1

Yayitya: InyamaIityrannosauriiCretaceous yamva

Nanuqsaurus was a small, fierce tyrannosaur that lived in the ancient Arctic, where it was the top predator. It had a short snout and sharp teeth, and it hunted in a world with long, dark winters.1

Yaphila

72 ukuya ku-66 izigidi zeminyaka eyadlulayo5

iCretaceous yamva

Iifosili zifunyenwe:

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

Ubude

5 ukuya ku-9 m (16 ukuya ku-30 ft)3 4

Ubunzima

500 kg ukuya ku-1.9 iitoni (1,100 ukuya ku-4,200 lb)3

Ukuphakama

2.9 m (9.5 ft)

uqikelelo

Esona santya siphezulu

malunga ne-36 km/h (22 mph)

Ukubaleka, uqikelelo

Yaphila nini?

iTriassic

iJurassic

iCretaceous

Izigidi ezingama-252 zeminyaka eyadlulayo20114566, i-asteroyidi

Yayinkulu kangakanani?

Yayinde kangakanani?

Yayiphakame kangakanani?

uqikelelo

Yayinzima kangakanani?

inzima njengeemoto ezingama-1.5

inde njengeemoto ezingama-2 zipakwe zilandelelanainde njengeebhanana ezingama-50 zilandelelanainzima njengezinja ezingama-95inzima njengamavatala angama-380inzima njengabantwana basenkulisa abangama-100inzima njengabantwana besikolo abangama-59inzima njengeebhere ezimhlophe ezingama-4ibinokubaleka iimitha ezili-100 ngemizuzwana engama-10 (oyena mntu ukhawulezayo udinga i-9,6)

Nanuqsaurus 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)

Nanuqsaurus malunga ne-36 km/h (22 mph)

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

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

izinto ezimnandi

Iinyani ezimnandi

Nanuqsaurus was small for a tyrannosaur, with an estimated skull length of only 600 to 700 millimeters (about 2 feet) in adults.1

It lived at a paleolatitude of about 80 to 85 degrees north, meaning it experienced months of continuous darkness in winter.3

Its name comes from the Iñupiaq word 'nanuq' for polar bear, because it was a top predator in a cold, seasonal environment.1

Nanuqsaurus had a distinctive skull feature: the first two teeth in its lower jaw were much smaller than the ones behind them, which helped it bite in a unique way.1

It was closely related to the famous Tyrannosaurus rex, but much smaller, possibly because food was scarce in its Arctic habitat.1

The only known fossil is a partial skull, found in 2006, and it was initially mistaken for a different dinosaur called Gorgosaurus.1

Umfanekiso owenziwe yi-AI: Nanuqsaurus — Umfanekiso owenziwe yi-AI obonisa indlela Nanuqsaurus 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: Nanuqsaurus

?How big was Nanuqsaurus?

Scientists first thought it was 5 to 6 meters long, but newer fossils suggest it may have grown to about 7 meters and weighed over 1.9 metric tons.3

?What did Nanuqsaurus eat?

As the top predator in its Arctic home, it likely hunted other dinosaurs like hadrosaurs and horned dinosaurs.3

?Did Nanuqsaurus have feathers?

Yes, it was likely covered in feathers for insulation against the cold.3

?Was Nanuqsaurus a dinosaur?

Yes, it was a theropod dinosaur and a close relative of Tyrannosaurus rex.3

?When did Nanuqsaurus live?

It lived during the Late Cretaceous, about 70 million years ago.4

?Why is it called Nanuqsaurus?

Its name means 'polar bear lizard' in Iñupiaq, because it was the top predator in the ancient Arctic.3

?Could Nanuqsaurus survive in the dark?

Yes, it lived through about 120 days of constant winter darkness each year and likely stayed in the Arctic year-round.3

?Is Nanuqsaurus bigger than a T. rex?

No, it was much smaller. T. rex was about 12 meters long, while Nanuqsaurus was only about half that size.4

Inyaniso ngeentsomi

Intsomi: Some people think Nanuqsaurus was a baby Tyrannosaurus rex because it was small.

Inyaniso: Nanuqsaurus was a distinct species, not a baby. It had unique skull features and lived in the Arctic, while T. rex lived further south.1

Kwiingcali zeedayinaso

Igama lenzululwazi: Nanuqsaurus
Inikwe igama ngu:: Fiorillo and Tykoski 20145
Iqela: Iityrannosauri
Usapho / iclade: Tyrannosauridae5
Ukuhlelwa: Theropoda > Tyrannosauroidea > Tyrannosauridae5
Ubudala bamatye: 72 ukuya ku-66 izigidi zeminyaka (Maastrichtian)5
Izakhiwo zamatye: Prince Creek5
Amazwe: iUSA5
Iirekhodi zeefosili: 1 kwi-Paleobiology Database5
Ukufunyanwa: Nanuqsaurus was named by Anthony Fiorillo and Ronald Tykoski in 2014, based on a partial skull found in Alaska's Prince Creek Formation. The fossil was discovered in the Kikak-Tegoseak Quarry.1
Kusaxoxwa ngayo: Scientists still debate why Nanuqsaurus was so small, with some thinking it was due to limited food in the Arctic, but others suggest it might have been a juvenile or a different factor.1

Apho iinyani zivela khona

A Diminutive New Tyrannosaur from the Top of the World (pmc.ncbi.nlm.nih.gov)
PBDB Taxon (paleobiodb.org)
Nanuqsaurus (en.wikipedia.org)
Diminutive dinosaur stalked the Arctic | Nature (nature.com)
Nanuqsaurus in The Paleobiology Database (CC BY 4.0): ubudala, iindawo, izakhiwo zamatye, ukuhlelwa.

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