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Yutyrannus

Erinnya litegeeza: “feathered tyrant”1

Yalyanga: EnnyamaTiranosawuluEntandikwa ya Kuretasi

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

Yabeerawo

emyaka obukadde 126 okutuuka ku 120 emabega5

Entandikwa ya Kuretasi

Ebisigalira byazuulibwa mu

Liaoning Province, China2 1

Obuwanvu

7.5 okutuuka ku 10 m (25 okutuuka ku 33 ft)1

Obuzito

ttani 1.1 okutuuka ku ttani 1.414 (2,400 okutuuka ku 3,100 lb)1

Obugulumivu

2.5 okutuuka ku 3.5 m (8.2 okutuuka ku 11 ft)1 2

Sipiidi esinga

nga 34 km/h (21 mph)

Okudduka, kuteebereza

Yabeerawo ddi?

Tiriyasi

Jurasiki

Kuretasi

Emyaka obukadde 252 emabega20114566, asteroyidi

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obuzito ng'obw'embwa 71

obuwanvu ng'emmotoka 2 ezisimbiddwa mu lunyiririobuwanvu ng'amenvu 56 nga gaddiriŋŋanaobuzito ng'obwa wotamerooni 280obuzito ng'obw'abaana 74 ab'omu nnasaleobuzito ng'obw'abaana b'essomero 44obuzito ng'obwa ddubu enjeru 3yandidduse mita 100 mu sikonda 11 (omuntu asinga embiro yeetaaga 9.6)

Yutyrannus yali munene atya bw'ogeraageranya ku GGWE?

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Omuntu atambula nga 5 km/h (3 mph)

Omwana ku kagaali nga 12 km/h (7 mph)

Yutyrannus nga 34 km/h (21 mph)

Embalaasi edduka ennyo nga 65 km/h (40 mph)

Cheetah nga 100 km/h (62 mph)

ebintu ebinyuvu

Ebyewuunyisa

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

Ekifaananyi kya Yutyrannus ekyakolebwa AI, nga kiraga engeri gye yayinza okuba ng'afaanana, ekyakolebwa kompyuta okusinziira ku ebyo bannassaayansi bye bamanyi. Kuteebereza: ekisolo ekyennyini kiyinza okuba nga kyali kifaanana bulala, era tewali amanyi langi zaakyo ez'amazima.

wabuuza

Ebibuuzo ebisinga okubuuzibwa ku 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

Omumenyi w'enfumo

Enfumo: All large dinosaurs were scaly, not feathered.

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

Eri abakugu mu dayinoso

Erinnya lya ssaayansi: Yutyrannus
Yatuumibwa: Xu et al. 20125
Ekibinja: Tiranosawulu
Ekika / ekibinja: Proceratosauridae5
Engabanya: Theropoda > Tyrannosauroidea5
Emyaka gy'enjazi: emyaka obukadde 126 okutuuka ku 120 (Barremian / Aptian)5
Ensengeka z'enjazi: Yixian5
Ensi: Cayina5
Ebisigalira ebyazuulibwa: 1 mu The Paleobiology Database5
Okuzuulibwa: 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
Kikyakubaganyizibwako ebirowoozo: 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

Ebituufu gye biva

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): emyaka, ebifo, ensengeka z'enjazi, engabanya.

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