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Yutyrannus

Il num vul dir: “feathered tyrant”1

Mangiava: CharnTirannosaursCretacic tempriv

Yutyrannus was a big, feathered dinosaur that lived in China about 125 million years ago. It was a cousin of T. rex, but it had feathers all over its body. Scientists found three nearly complete skeletons, which helps us learn a lot about this amazing creature.2 1

Viveva

avant 126 fin 120 milliuns onns5

Cretacic tempriv

Fossils chattads en

Liaoning Province, China2 1

Lunghezza

7,5 fin 10 m (25 fin 33 ft)1

Paisa

1,1 tonnas fin 1,414 tonnas (2 400 fin 3 100 lb)1

Autezza

2,5 fin 3,5 m (8,2 fin 11 ft)1 2

Spertadad maximala

var 34 km/h (21 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?

Quant grev era el?

uschè grev sco 71 chauns

uschè lung sco 2 autos parcads in suenter l'auteruschè lung sco 56 bananas ina suenter l'autrauschè grev sco 280 melunasuschè grev sco 74 uffants da scolettauschè grev sco 44 scolarsuschè grev sco 3 urs polarspudess currer 100 meters en 11 secundas (il pli spert uman dovra 9,6)

Quant grond era Yutyrannus 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)

Yutyrannus var 34 km/h (21 mph)

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

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

Yutyrannus is the largest dinosaur ever found with direct evidence of feathers. It was about 40 times heavier than the previous record holder, Beipiaosaurus.1

The feathers of Yutyrannus were long and filamentous, up to 20 centimetres (7.9 inches) long. They may have covered most of its body.1

Yutyrannus lived during the early Cretaceous period, about 125 million years ago. That is about 55 million years before T. rex appeared.2 1

The three known Yutyrannus fossils were found together, which suggests they may have lived and hunted in packs.1

Yutyrannus had a bite force of about 2,405 newtons (540 pounds-force). That is strong, but much weaker than the bite of T. rex.1

The climate where Yutyrannus lived was cool, with an average annual temperature of about 10 °C (50 °F). Its feathers may have helped keep it warm.1

Maletg da Yutyrannus fatg cun IA — In maletg fatg cun IA che mussa co Yutyrannus 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 Yutyrannus

?How big was Yutyrannus?

About 7.5 to 10 metres long, and weighed around 1,100 to 1,414 kilograms.3 1

?Did Yutyrannus have feathers?

Yes. Fossil imprints show it had long, filamentous feathers up to 20 centimetres long, making it the largest dinosaur with direct evidence of feathers.2 1

?What did Yutyrannus eat?

It was a carnivore, meaning it ate meat. It may have hunted in packs to take down large prey like sauropods.3

?Was Yutyrannus bigger than T. rex?

No. Yutyrannus was about 7.5 to 10 metres long, while T. rex could grow to over 12 metres. T. rex was larger.3

?When did Yutyrannus live?

It lived during the Early Cretaceous period, about 125 million years ago. That is about 55 million years before T. rex appeared.3 1

?Where was Yutyrannus found?

Its fossils were found in Liaoning Province, northeastern China, in rocks of the Yixian Formation.3 1

?Why did Yutyrannus have a crest?

The wavy crest on its snout was probably used for display, like to attract mates or show off.1 4

?How fast could Yutyrannus run?

Scientists are not sure exactly, but its short foot was not specialized for running, so it was probably not very fast.1

?Is Yutyrannus a dinosaur?

Yes, it is a dinosaur. It belongs to the group Tyrannosauroidea, which includes T. rex and its relatives.3 1

Chatschader da mitus

Mitus: All large dinosaurs were scaly, not feathered.

Vardad: Yutyrannus shows that even some very large dinosaurs, like this 10-metre-long tyrannosaur, had feathers.2 1

Per experts da dinos

Num scientific: Yutyrannus
Numnà da: Xu et al. 20125
Gruppa: Tirannosaurs
Famiglia / clada: Proceratosauridae5
Classificaziun: Theropoda > Tyrannosauroidea5
Vegliadetgna da la crappa: 126 fin 120 milliuns onns (Barremian / Aptian)5
Formaziuns da crap: Yixian5
Pajais: China5
Chats da fossils: 1 en The Paleobiology Database5
Scuverta: Yutyrannus was named and described by Xu Xing and colleagues in 2012. The three fossils were bought from a fossil dealer who said they came from a single quarry in Liaoning, China.1
Anc discutà: Scientists are not sure if the feathers covered the whole body or only certain parts. They also debate whether later, larger tyrannosaurs like T. rex had feathers as adults.1

Danunder che vegnan ils fatgs

Yutyrannus (en.wikipedia.org)
A gigantic feathered dinosaur from the Lower Cretaceous of China | Nature (nature.com)
Yutyrannus | Natural History Museum (nhm.ac.uk)
Dinosaurs - Yutyrannus huali - The Australian Museum (australian.museum)
Yutyrannus in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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