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Ornitholestes

Izenaren esanahia: “bird robber”1

Jaten zuen: HaragiaDino haragijaleakGoi Jurasikoa eta Behe Kretazeoa artean

Ornitholestes was a small, fast dinosaur that lived about 154 million years ago. It had long fingers with claws to grab quick prey like lizards and early mammals. Its name means 'bird robber', but scientists think it probably didn't eat many birds.1 2

Bizi izan zen

Duela 158 eta 143 milioi urte artean4

Goi Jurasikoa eta Behe Kretazeoa artean

Fosilak hemen aurkitu dira:

Wyoming, USA, and possibly Colorado1 4

Luzera

2 eta 2,22 m artean (6,6 eta 7,3 ft artean)1

Pisua

12,6 kg eta 15 kg artean (28 eta 33 lb artean)1

Altuera

0,7 m (2,3 ft)3

Abiadura maximoa

40 km/h inguru (25 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?

4 etxeko katu bezain astun

4 etxeko katu bezain luze, sudurretik buztanerabata bestearen atzean jarritako 12 banana bezain luze120 banana bezain astun100 metro 9 segundotan egin zitzakeen korrika (gizakirik azkarrenak 9,6 behar ditu)

Zein handia zen Ornitholestes 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)

Ornitholestes 40 km/h inguru (25 mph)

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

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

Ornitholestes had big eyes, which were more than one quarter of the length of its skull. This might have helped it see at night.1

Its tail was very long and whiplike, making up more than half of its body length. The tail helped it balance while running.1

The front teeth of Ornitholestes were cone-shaped and not very serrated, but the back teeth were curved and had sharp serrations like steak knives.1

Only one nearly complete skeleton of Ornitholestes has been found. It was discovered in Wyoming in 1900 by a team from the American Museum of Natural History.1

Some scientists once thought Ornitholestes was the same dinosaur as Coelurus, but most now agree they are different genera.1 2

An early drawing by Charles R. Knight showed Ornitholestes chasing the bird Archaeopteryx, but scientists today think it mostly ate ground animals.1

Ornitholestes: AAk egindako irudia — Ornitholestes 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

Ornitholestes: gehien egindako galderak

?How big was Ornitholestes?

About 2 metres (6.6 feet) long and weighed around 12.6 kilograms (27.8 pounds).1 2

?What did Ornitholestes eat?

It ate small, speedy animals like lizards, early mammals, and maybe baby dinosaurs. Some scientists think it might have also caught fish or an occasional bird.1 2

?Could Ornitholestes fly?

No, Ornitholestes was a dinosaur that walked and ran on two legs. It could not fly.1 2

?Was Ornitholestes a dinosaur?

Yes, Ornitholestes was a small meat-eating theropod dinosaur.1 2

?When did Ornitholestes live?

It lived during the Late Jurassic Period, about 154 million years ago.1 2

?Where was Ornitholestes found?

A nearly complete skeleton was found in Wyoming, USA, in 1900.1 2

?How fast could Ornitholestes run?

Scientists do not know its exact speed, but it had strong running muscles and a long tail for balance, so it was probably fast.1 2

?Did Ornitholestes have feathers?

No fossil feathers have been found with Ornitholestes, but since it was a close relative of feathered dinosaurs, some scientists think it might have had simple feathers.1

Mito-hauslea

Mitoa: Ornitholestes mainly ate birds.

Egia: Its name means 'bird robber', but scientists now think it mostly ate small land animals like lizards, mammals, and baby dinosaurs. It may have also eaten fish.1

Dino adituentzat

Izen zientifikoa: Ornitholestes
Izendatzailea:: Osborn 19034
Taldea: Dino haragijaleak
Familia / klada: Compsognathidae4
Sailkapena: Theropoda > Compsognathidae4
Arroken adina: 158 eta 143 milioi urte artean ()4
Arroka-formazioak: Morrison4
Herrialdeak: AEB4
Fosil-erregistroak: 4 The Paleobiology Database datu-basean4
Aurkikuntza: Ornitholestes was named by Henry Fairfield Osborn in 1903. The skeleton was dug up in July 1900 in Wyoming by a team from the American Museum of Natural History.1
Oraindik eztabaidagai: Scientists are not sure if Ornitholestes hunted at night. One researcher suggested its big eyes were for night vision, but there is no proof yet.1

Datuak nondik datozen

Ornitholestes (en.wikipedia.org)
Ornitholestes | Small, carnivorous, Jurassic | Britannica (britannica.com)
Ornitholestes — Grokipedia (grokipedia.com)
Ornitholestes in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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