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Joaquinraptor

Izenaren esanahia: “Joaquin's thief”1

Jaten zuen: HaragiaDino haragijaleakGoi Kretazeoa

Joaquinraptor was a meat-eating dinosaur with big claws on its hands. It lived in what is now Argentina near the very end of the age of dinosaurs. Scientists found its skeleton with a crocodile arm bone stuck between its jaws!1

Bizi izan zen

Duela 72 eta 66 milioi urte artean8

Goi Kretazeoa

Fosilak hemen aurkitu dira:

Chubut Province, central Patagonia, Argentina2 1

Luzera

7 m (23 ft)3

Pisua

680 kg eta 1,036 tona artean (1 500 eta 2 300 lb artean)3 4 5

Altuera

2,2 m (7,2 ft)4

Abiadura maximoa

38 km/h inguru (24 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?

52 txakur bezain astun

7 txakur bezain luze, sudurretik buztanerabata bestearen atzean jarritako 39 banana bezain luze210 angurria bezain astunhaur-eskolako 55 haur bezain astun32 eskolaume bezain astun2,5 hartz zuri bezain astun100 metro 9,5 segundotan egin zitzakeen korrika (gizakirik azkarrenak 9,6 behar ditu)

Zein handia zen Joaquinraptor 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)

Joaquinraptor 38 km/h inguru (24 mph)

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

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

Joaquinraptor is a member of a group called Megaraptoridae, which are known for their large claws on the first and second fingers.1

The only known skeleton of Joaquinraptor includes parts of the skull, backbone, shoulder, arm, and leg bones.1

This dinosaur lived during the Maastrichtian stage, about 72 to 66 million years ago, right up to the time when the non-bird dinosaurs went extinct.2 1

Joaquinraptor was one of the last surviving megaraptorid dinosaurs, and it may have been the top predator in its ecosystem in central and southern Patagonia.1

The fossil of Joaquinraptor was found with a crocodile arm bone between its lower jaws, and some of its teeth touched that bone. This might mean it was eating a crocodile.1

Joaquinraptor was named in 2025 by a team of scientists led by Lucio M. Ibiricu. The name honors the first author's son Joaquin and the fossil site called Valle Joaquin.1

Joaquinraptor: AAk egindako irudia — Joaquinraptor 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

Joaquinraptor: gehien egindako galderak

?How big was Joaquinraptor?

It was at least 7 metres (23 feet) long and weighed about 1,036 kilograms (2,284 pounds). That is about as long as a large pickup truck.3 6

?What did Joaquinraptor eat?

It was a meat-eater. Scientists found a crocodile arm bone stuck in its jaws, so it probably ate crocodile relatives.3 6 7

?When did Joaquinraptor live?

It lived about 67 million years ago, near the very end of the age of dinosaurs. It was one of the last megaraptorids.3 6

?Did Joaquinraptor have big claws?

Yes, it had large, curved claws on its hands, like other megaraptorids. Its arms were long and strong.3 7

?Where was Joaquinraptor found?

It was found in central Patagonia, Argentina, in the Lago Colhué Huapi Formation. The fossils were collected from 2019 to 2023.3 6

?Is Joaquinraptor a dinosaur?

Yes, it is a dinosaur. It is a theropod dinosaur from the group called Megaraptoridae.3

Dino adituentzat

Izen zientifikoa: Joaquinraptor
Izendatzailea:: Ibiricu et al. 20258
Taldea: Dino haragijaleak
Familia / klada: Megaraptoridae8
Sailkapena: Theropoda > Megaraptora8
Arroken adina: 72 eta 66 milioi urte artean (Maastrichtian)8
Arroka-formazioak: Lago Colhué Huapi8
Herrialdeak: Argentina8
Fosil-erregistroak: 1 The Paleobiology Database datu-basean8
Aurkikuntza: Joaquinraptor was named by Lucio M. Ibiricu and colleagues in 2025. The skeleton was found in the Lago Colhué Huapi Formation in Chubut, Argentina, at a site called Valle Joaquin.2 1
Oraindik eztabaidagai: Scientists are not sure if the crocodile arm bone found with Joaquinraptor shows that it ate crocodiles, or if it got there by accident, such as being moved by water.1

Datuak nondik datozen

Latest Cretaceous megaraptorid theropod dinosaur sheds ... (pmc.ncbi.nlm.nih.gov)
PBDB Taxon (paleobiodb.org)
Joaquinraptor (en.wikipedia.org)
Joaquinraptor (es.wikipedia.org)
(PDF) Latest Cretaceous megaraptorid theropod dinosaur sheds light on megaraptoran evolution and palaeobiology (researchgate.net)
How mean was this new Argentine dinosaur? It had a croc leg in its jaws | Reuters (reuters.com)
New megaraptor discovered—with its final meal still in its mouth | National Geographic (nationalgeographic.com)
Joaquinraptor in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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