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Aratasaurus

Izenaren esanahia: “born fire lizard”1

Jaten zuen: HaragiaDino haragijaleakBehe Kretazeoa

Aratasaurus was a meat-eating dinosaur that lived in what is now Brazil. It was a young animal when it died, and scientists think it would have grown bigger. Its leg bones were found in a dark shale rock.1 2

Bizi izan zen

Duela 113 eta 110 milioi urte artean3

Behe Kretazeoa

Fosilak hemen aurkitu dira:

Mina Pedra Branca, near Santana do Cariri, Ceará, Brazil1 2

Luzera

3,12 m (10 ft)1

Pisua

34,25 kg (76 lb)1 2

Abiadura maximoa

47 km/h inguru (29 mph)

Korrika egitea, kalkulua

Noiz bizi izan zen?

Triasikoa

Jurasikoa

Kretazeoa

Duela 252 milioi urte20114566, asteroidea

Zein handia zen?

Zein luzea zen?

Zein astuna zen?

9 etxeko katu bezain astun

3 txakur bezain luze, sudurretik buztanerabata bestearen atzean jarritako 17 banana bezain luze7 angurria bezain astun100 metro 7,7 segundotan egin zitzakeen korrika (gizakirik azkarrenak 9,6 behar ditu)

Zein handia zen Aratasaurus 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)

Aratasaurus 47 km/h inguru (29 mph)

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

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

Aratasaurus is known from only one partial right leg, including part of the thigh bone, shin bone, and foot bones.1

It lived about 115 million years ago during the Early Cretaceous period.2

The fossil was discovered in 2008 in a plaster mine.2

Aratasaurus is the only tetrapod (four-limbed animal) found so far in the lower layers of the Romualdo Formation.1 2

Its name comes from the Tupi language words for 'born' and 'fire', because the fossil was studied at the Museu Nacional in Rio de Janeiro, which was damaged by a fire in 2018.1

Scientists think Aratasaurus was a basal coelurosaur, meaning it was an early relative of more advanced theropods like Tyrannosaurus.1

Aratasaurus: AAk egindako irudia — Aratasaurus 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

Aratasaurus: gehien egindako galderak

?How big was Aratasaurus?

It was about 3.12 metres (10.2 ft) long and weighed around 34.25 kilograms (75.5 lb). But it was still growing when it died, so adults could have been larger.2 1

?Did Aratasaurus have feathers?

Yes, scientists think it likely had some form of feather covering because it was a coelurosaur, a group that includes feathered dinosaurs. No feathers were preserved in the fossil, though.2

?What did Aratasaurus eat?

Aratasaurus was a meat-eating dinosaur, or theropod. It likely hunted small animals, but its exact diet is not known from the few bones found.2

?Where was Aratasaurus found?

Its leg bones were discovered in 2008 in a plaster mine in northeastern Brazil, in the Romualdo Formation near Santana do Cariri.2 1

Dino adituentzat

Izen zientifikoa: Aratasaurus
Izendatzailea:: Sayão et al. 20203
Taldea: Dino haragijaleak
Familia / klada: Coelurosauria3
Sailkapena: Theropoda3
Arroken adina: 113 eta 110 milioi urte artean (Albian)3
Arroka-formazioak: Romualdo3
Herrialdeak: Brasil3
Fosil-erregistroak: 1 The Paleobiology Database datu-basean3
Aurkikuntza: Aratasaurus was named in 2020 by a team of Brazilian and Chinese scientists. The fossil was donated by a local resident who found it in the Mina Pedra Branca mine near Santana do Cariri, Brazil.1
Oraindik eztabaidagai: Scientists are not sure exactly how big Aratasaurus would have grown as an adult, because only a juvenile specimen has been found.1

Datuak nondik datozen

The first theropod dinosaur (Coelurosauria, Theropoda) from the base of the Romualdo Formation (Albian), Araripe Basin, Northeast Brazil (pmc.ncbi.nlm.nih.gov)
Aratasaurus (en.wikipedia.org)
Aratasaurus in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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