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Dreadnoughtus

Izenaren esanahia: “fears nothing”1

Jaten zuen: LandareakLepo-luzeakGoi Kretazeoa

Dreadnoughtus was a giant, long-necked plant eater that stomped through ancient Argentina. It was one of the biggest land animals ever found, and its name means 'fears nothing' because it was so huge and tough.1

Bizi izan zen

Duela 84 eta 72 milioi urte artean6

Goi Kretazeoa

Fosilak hemen aurkitu dira:

Santa Cruz Province, Patagonia, Argentina1

Luzera

26 m (85 ft)1

Pisua

48 tona eta 49 tona artean (105 800 eta 108 000 lb artean)1

Altuera

6 m (20 ft)1

Abiadura maximoa

9 km/h inguru (6 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?

Zein astuna zen?

8 elefante bezain astun

ilaran aparkatutako 6 auto bezain luzebata bestearen atzean jarritako 140 banana bezain luze9800 angurria bezain astunhaurrez betetako 61 ikasgela oso bezain astun110 hartz zuri bezain astun3. solairuko leiho batetik begiratzeko bezain altua100 metro 40 segundotan egin zitzakeen korrika (gizakirik azkarrenak 9,6 behar ditu)

Zein handia zen Dreadnoughtus 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)

Dreadnoughtus 9 km/h inguru (6 mph)

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

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

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

Dreadnoughtus is known from more complete skeletons than any other gigantic titanosaur, with about 70% of the bones behind the skull preserved.1 3

Its neck was super long, about 11.3 metres (37 feet), which is almost half of its total body length.1

The type specimen was still growing when it died, so adults might have been even bigger.1

Its bones were buried quickly in a flood, which is why they are so well preserved.1

Small theropod teeth found with the bones suggest scavengers, maybe megaraptorans, nibbled on the carcass.1

Dreadnoughtus lived about 76 to 70 million years ago, during the Late Cretaceous.1

Dreadnoughtus: AAk egindako irudia — Dreadnoughtus 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

Dreadnoughtus: gehien egindako galderak

?How big was Dreadnoughtus?

About 26 metres long and weighed around 48 to 49 metric tons, though some estimates range higher or lower.1 4

?What did Dreadnoughtus eat?

It was a plant-eater (herbivore). Its long neck helped it reach lots of different plants without moving much.5 1

?Was Dreadnoughtus bigger than T. rex?

Yes, Dreadnoughtus was much bigger. It was about 26 metres long and weighed up to 49 metric tons, while T. rex was about 12 metres long and weighed around 8 metric tons.1 5

?Did Dreadnoughtus have any predators?

Healthy adults were probably too big to be attacked, but small theropod teeth found with the bones suggest scavengers like megaraptorans nibbled on the carcass.1 5

?How fast could Dreadnoughtus run?

Nobody knows for sure, but because it was so huge and walked on four legs, it probably moved slowly, like a modern elephant.5

?Where was Dreadnoughtus found?

In Patagonia, Argentina, in the Cerro Fortaleza Formation of Santa Cruz Province.1 4

?When did Dreadnoughtus live?

It lived during the Late Cretaceous, about 76 to 70 million years ago.1 5

?Why is it called Dreadnoughtus?

Its name means 'fears nothing' because its huge size made it hard for predators to attack. It also honors the dreadnought battleships.1 5

Mito-hauslea

Mitoa: Some people think Dreadnoughtus was the biggest dinosaur ever.

Egia: It was one of the largest known from fairly complete remains, but other titanosaurs like Argentinosaurus might have been heavier, though they are known from much less complete fossils.1

Dino adituentzat

Izen zientifikoa: Dreadnoughtus
Izendatzailea:: Lacovara et al. 20146
Taldea: Lepo-luzeak
Familia / klada: Eutitanosauria6
Sailkapena: Sauropodomorpha > Sauropoda > Titanosauria > Macronaria6
Arroken adina: 84 eta 72 milioi urte artean (Campanian)6
Arroka-formazioak: Cerro Fortaleza6
Herrialdeak: Argentina6
Fosil-erregistroak: 2 The Paleobiology Database datu-basean6
Aurkikuntza: Paleontologist Kenneth Lacovara discovered Dreadnoughtus in 2005 in the Cerro Fortaleza Formation in Argentina. It took four summers to dig out the huge bones, using mules and ropes to move them.1
Oraindik eztabaidagai: Scientists still debate exactly where Dreadnoughtus fits in the titanosaur family tree, because it has a mix of advanced and primitive features.1

Datuak nondik datozen

Dreadnoughtus (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
A Gigantic, Exceptionally Complete Titanosaurian Sauropod Dinosaur from Southern Patagonia, Argentina (exa.ai)
A Gigantic, Exceptionally Complete Titanosaurian Sauropod Dinosaur from Southern Patagonia, Argentina | Scientific Reports (nature.com)
Dreadnoughtus (nhm.ac.uk)
Dreadnoughtus in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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