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Ugrunaaluk

Il num vul dir: “ancient grazer”1

Mangiava: PlantasPichels d'andaCretacic tardiv

Ugrunaaluk was a duck-billed dinosaur that lived in the ancient Arctic, where it was cold and dark for part of the year. It had a long, flat beak and hundreds of teeth for chewing tough plants. This dinosaur is special because it shows that some dinosaurs could survive in polar regions.5 1

Viveva

avant 72 fin 66 milliuns onns5

Cretacic tardiv

Fossils chattads en

Liscomb Quarry, Prince Creek Formation, northern Alaska, USA5 1

Lunghezza

9 fin 12 m (30 fin 39 ft)2 3

Paisa

4 tonnas fin 5,6 tonnas (8 800 fin 12 300 lb)2 3

Autezza

3,9 m (13 ft)

stima

Spertadad maximala

var 21 km/h (13 mph)

Currer, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant grond era el?

Quant lung era el?

Quant aut era el?

stima

Quant grev era el?

uschè grev sco 4 autos

uschè lung sco 2,5 autos parcads in suenter l'auteruschè lung sco 67 bananas ina suenter l'autravar uschè grev sco in elefantuschè grev sco 1100 melunasuschè grev sco 7 classas da scola entirasuschè grev sco 12 urs polarspudess currer 100 meters en 17 secundas (il pli spert uman dovra 9,6)

Quant grond era Ugrunaaluk cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn arcunà u tramess.

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Ugrunaaluk var 21 km/h (13 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

Ugrunaaluk lived in the Arctic about 69 million years ago, when the climate was much cooler than today, with average temperatures around 5 to 6°C.1

Most of the Ugrunaaluk fossils found are from young animals, not fully grown adults. Scientists think a whole herd of juveniles may have died together in a flood.1

Its name comes from the Iñupiaq language of Alaska. Ugruŋnaq means a grazing animal with grinding teeth, and -aluk means old, so Ugrunaaluk is 'ancient grazer'.1

Ugrunaaluk was a close relative of Edmontosaurus, but scientists found enough differences in its skull bones to give it its own name.1

The Liscomb bonebed where Ugrunaaluk was found has thousands of bones, mostly from this dinosaur, along with a few teeth from tyrannosaurs and other small dinosaurs.1

During the time of Ugrunaaluk, the Arctic had polar woodlands with flowering plants in the understory, and the days were dark for months in winter.1

Maletg da Ugrunaaluk fatg cun IA — In maletg fatg cun IA che mussa co Ugrunaaluk pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

tias dumondas

Las dumondas las pli frequentas davart Ugrunaaluk

?How big was Ugrunaaluk?

Ugrunaaluk was about 7.6 to 9.1 meters (25 to 30 feet) long and stood about 1.8 to 2.1 meters (6 to 7 feet) tall at the hip.4

?What did Ugrunaaluk eat?

It was a plant-eater, with a flat beak and hundreds of teeth for chewing tough plants. Its jaw had at least 1,000 teeth with coarse surfaces perfect for pulverizing plants.4

?Did Ugrunaaluk live in the Arctic?

Yes, Ugrunaaluk lived in the ancient Arctic, above the Arctic Circle, about 69 million years ago. It endured cold and dark winters, with average temperatures around 5 to 6°C.4 1

?Was Ugrunaaluk a duck-billed dinosaur?

Yes, Ugrunaaluk belonged to the hadrosaur group of duck-billed dinosaurs. It had a long, flat beak and hundreds of teeth for chewing plants.4

?Why is Ugrunaaluk special?

Ugrunaaluk is special because it shows that some dinosaurs could survive in polar regions. It lived above the Arctic Circle, enduring months of darkness and cold.4

?How many teeth did Ugrunaaluk have?

Ugrunaaluk had at least 1,000 teeth in its jaw, with coarse surfaces perfect for pulverizing plants.4

?When did Ugrunaaluk live?

Ugrunaaluk lived about 69 million years ago, during the Late Cretaceous period, in the ancient Arctic.4

?Is Ugrunaaluk related to Edmontosaurus?

Yes, Ugrunaaluk is closely related to Edmontosaurus, but scientists found enough differences in its skull bones to give it its own name.1

?Where was Ugrunaaluk found?

Ugrunaaluk fossils were found in the Liscomb bonebed in the Prince Creek Formation of northern Alaska, along the Colville River.1

Chatschader da mitus

Mitus: Ugrunaaluk is just a young Edmontosaurus and not a real separate dinosaur.

Vardad: Scientists showed that Ugrunaaluk has unique skull features that make it a distinct species, even when accounting for age differences.1

Per experts da dinos

Num scientific: Ugrunaaluk
Numnà da: Mori et al. 20165
Gruppa: Pichels d'anda
Famiglia / clada: Hadrosauridae5
Classificaziun: Ornithischia > Ornithopoda > Iguanodontia > Hadrosauridae5
Vegliadetgna da la crappa: 72 fin 66 milliuns onns (Maastrichtian)5
Formaziuns da crap: Prince Creek5
Pajais: USA5
Chats da fossils: 1 en The Paleobiology Database5
Scuverta: Ugrunaaluk was named in 2016 by Hirotsugu Mori, Patrick Druckenmiller, and Gregory Erickson. The fossils were found in the Liscomb bonebed along the Colville River in northern Alaska.5 1
Anc discutà: Scientists are not sure exactly how big adult Ugrunaaluk grew, because almost all the fossils are from juveniles.1

Danunder che vegnan ils fatgs

Formation (lower Maastrichtian) of northern Alaska (app.pan.pl)
Edmontosaurus (en.wikipedia.org)
Edmontosaurus regalis (en.wikipedia.org)
New Dinosaur Species Probably Endured Snow and Darkness for Months on End | NOVA | PBS (pbs.org)
Ugrunaaluk in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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