Ikarita ya dinozore nimero 1238 muri 2 027

Nanuqsaurus

Izina risobanura: “polar bear lizard”1

Yaryaga: InyamaTiranozoreKiretase ya nyuma

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

Yabayeho

hashize imyaka miliyoni 72 kugeza 665

Kiretase ya nyuma

Ibisigazwa byabonetse muri

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

Uburebure

5 kugeza 9 m (16 kugeza 30 ft)3 4

Uburemere

500 kg kugeza toni 1,9 (1 100 kugeza 4 200 lb)3

Ubutumburuke

2,9 m (9,5 ft)

igereranya

Umuvuduko wo hejuru

nka 36 km/h (22 mph)

Kwiruka, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

Ubutumburuke bwayo bwanganaga iki?

igereranya

Yari iremereye ite?

iremereye nk'imodoka 1,5

ndende nk'imodoka 2 ziparitse ku murongondende nk'imineke 50 ikurikiranyeiremereye nk'imbwa 95iremereye nk'imbuto 380 za watermeloniremereye nk'abana 100 bo mu ishuri ry'incukeiremereye nk'abanyeshuri 59iremereye nk'idubu 4 zo mu ruburayashoboraga kwiruka metero 100 mu masegonda 10 (umuntu wihuta kurusha abandi akenera 9,6)

Nanuqsaurus yanganaga ite ugereranyije NAWE?

Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.

Yihutaga ite?

Umuntu ugenda n'amaguru nka 5 km/h (3 mph)

Umwana ku igare nka 12 km/h (7 mph)

Nanuqsaurus nka 36 km/h (22 mph)

Ifarashi yiruka cyane nka 65 km/h (40 mph)

Ingwe yihuta cyane nka 100 km/h (62 mph)

utuntu twiza cyane

Utuntu dushimishije

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

Ishusho ya Nanuqsaurus yakozwe na AI — Ishusho yakozwe na AI yerekana uko Nanuqsaurus ishobora kuba yari isa, yakozwe na mudasobwa hashingiwe ku byo abahanga bazi. Ni ugukeka gusa: inyamaswa nyayo ishobora kuba yari isa ukundi, kandi nta muntu uzi amabara yayo nyayo.

wabajije

Ibibazo bibazwa cyane kuri 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

Gusenya ibinyoma

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

Ukuri: 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

Ku bazobereye muri dinozore

Izina rya siyansi: Nanuqsaurus
Yiswe na: Fiorillo and Tykoski 20145
Itsinda: Tiranozore
Umuryango / ishami: Tyrannosauridae5
Ishyirwa mu byiciro: Theropoda > Tyrannosauroidea > Tyrannosauridae5
Imyaka y'amabuye: imyaka miliyoni 72 kugeza 66 (Maastrichtian)5
Inzego z'amabuye: Prince Creek5
Ibihugu: Amerika5
Ibisigazwa byanditswe: 1 muri The Paleobiology Database5
Ivumburwa: 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
Biracyagibwaho impaka: 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

Aho amakuru yakuwe

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): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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