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Tianyulong

Izenaren esanahia: “sky dragon, named after the Shandong Tianyu Museum of Nature”1

Jaten zuen: LandareakLandarejale mokodunakErdi Jurasikoa eta Goi Jurasikoa artean

Tianyulong was a tiny dinosaur covered in fuzzy, feather-like filaments. It lived in what is now China and used its beak to munch on plants. This little dinosaur surprised scientists because it showed that even plant-eaters could have fluffy coats!1 2

Bizi izan zen

Duela 168 eta 152 milioi urte artean5

Erdi Jurasikoa eta Goi Jurasikoa artean

Fosilak hemen aurkitu dira:

Jianchang County, western Liaoning Province, China1

Luzera

0,7 m (2,3 ft)1

Altuera

0,24 m (0,8 ft)

kalkulua

Abiadura maximoa

19 km/h inguru (12 mph)

Korrika egitea, kalkulua

Noiz bizi izan zen?

Triasikoa

Jurasikoa

Kretazeoa

Duela 252 milioi urte20114566, asteroidea

Zein handia zen?

Zein luzea zen?

Zein altua zen?

kalkulua

bata bestearen atzean jarritako 4 banana bezain luzeaulki baten azpitik ibiltzeko bezain txikia100 metro 19 segundotan egin zitzakeen korrika (gizakirik azkarrenak 9,6 behar ditu)

Zein handia zen Tianyulong ZUREKIN alderatuta?

Zure nabigatzaileko kalkulu hutsak. Ez da ezer gordetzen ez inora bidaltzen.

Zein azkarra zen?

Pertsona bat oinez 5 km/h inguru (3 mph)

Haur bat bizikletan 12 km/h inguru (7 mph)

Tianyulong 19 km/h inguru (12 mph)

Zaldi bat lauhazka 65 km/h inguru (40 mph)

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

Tianyulong was one of the first ornithischian dinosaurs found with filamentous (fuzzy) structures on its body, similar to the proto-feathers of some theropods.2

The filaments on Tianyulong were long, unbranched, and hollow, reaching about 60 mm (2.4 inches) on its tail.1

Its skull was very large compared to its small neck and body, and its hind legs were much longer than its front legs.1

Tianyulong belonged to a group called heterodontosaurids, which had a pair of enlarged canine-like tusks.1

The only known species is Tianyulong confuciusi, named after the Chinese philosopher Confucius.1

At first scientists thought Tianyulong lived in the Early Cretaceous, but later dating of the rocks showed it was from the Middle Jurassic, about 158.5 million years ago.1

Tianyulong is known from several specimens, but all were collected by private collectors, so their exact location is uncertain.1

Tianyulong: AAk egindako irudia — Tianyulong nolakoa izan zitekeen erakusten duen AAk egindako irudia, ordenagailu batek zientzialariek dakitenetik sortua. Asmakizun bat da: benetako animalia desberdina izan zitekeen, eta inork ez daki zein ziren bere benetako koloreak.

zure galderak

Tianyulong: gehien egindako galderak

?How big was Tianyulong?

About 70 centimetres long, with its tail making up about 44 centimetres of that length. It was about the size of a cat.1 4

?Did Tianyulong have feathers?

It had long, hollow, unbranched filaments on its back, tail and neck that look like primitive feathers, called proto-feathers. Scientists are not sure if these are true feathers or something that evolved separately.1 2

?What did Tianyulong eat?

It was herbivorous or possibly omnivorous, using its beak to munch on plants. It also had a pair of enlarged canine-like tusks.1

?When did Tianyulong live?

It lived during the Middle Jurassic period, about 158.5 million years ago. Scientists first thought it was from the Early Cretaceous, but later dating of the rocks showed it was older.1

?Where was Tianyulong found?

Its fossils were discovered in Jianchang County, Western Liaoning Province, China. All specimens were collected by private collectors, so the exact location is uncertain.1

?Is Tianyulong a dinosaur?

Yes, it is a small ornithischian dinosaur called a heterodontosaurid. It is not a bird or a pterosaur.1

Mito-hauslea

Mitoa: Some people think only meat-eating dinosaurs had feathers or fuzzy coats.

Egia: Tianyulong shows that plant-eating ornithischian dinosaurs also had filamentous structures, suggesting that fuzzy coverings were common among many dinosaur groups.2

Dino adituentzat

Izen zientifikoa: Tianyulong
Izendatzailea:: Zheng et al. 20095
Taldea: Landarejale mokodunak
Familia / klada: Heterodontosauridae5
Sailkapena: Ornithischia > Heterodontosauridae5
Arroken adina: 168 eta 152 milioi urte artean (Bathonian / Kimmeridgian)5
Arroka-formazioak: Tiaojishan5
Herrialdeak: Txina5
Fosil-erregistroak: 1 The Paleobiology Database datu-basean5
Aurkikuntza: Tianyulong was named and described in 2009 by Xiao-Ting Zheng and colleagues, based on a fossil housed at the Shandong Tianyu Museum of Nature in China.1 2
Oraindik eztabaidagai: Scientists still debate whether the filamentous structures on Tianyulong are true proto-feathers or just collagen fibers under the skin.1

Datuak nondik datozen

Tianyulong (en.wikipedia.org)
An Early Cretaceous heterodontosaurid dinosaur with filamentous integumentary structures | Nature (nature.com)
PBDB Taxon (paleobiodb.org)
Tianyulong – a fuzzy dinosaur that makes the origin of feathers fuzzier | National Geographic (nationalgeographic.com)
Tianyulong in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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