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Dilophosaurus: marrazkia
Dino txartela, 0514. zk. (2ย 027 guztira)

Dilophosaurus

Izenaren esanahia: “two-crested lizard”1
Jaten zuen: HaragiaDino haragijaleakBehe Jurasikoa

Dilophosaurus was a big, fast meat-eating dinosaur that lived in North America about 186 million years ago. It had two thin crests on its head and strong jaws that could crush bone. It was the biggest land predator in its neighborhood during the Early Jurassic.12

Bizi izan zen
Duela 201 eta 184 milioi urte artean4
Behe Jurasikoa
Fosilak hemen aurkitu dira:
Arizona, Utah, USA; also India14
Luzera
6 m (20 ft)1
Pisua
283 kg eta 400 kg artean (624 eta 882 lb artean)12
Altuera
1,36 eta 1,75 m artean (4,5 eta 5,7 ft artean)12
Abiadura maximoa
38 km/h inguru (24 mph)
Korrika egitea: Sellers & Manning 2007

Noiz bizi izan zen?

Triasikoa
Jurasikoa
Kretazeoa
Duela 252 milioi urte20114566, asteroidea

Zein handia zen?

Zein luzea zen?

Dilophosaurus 6 m inguru luze (20 ft)Heldu baten bizikleta 1,8 m inguru (5,9 ft)Auto bat 4,5 m inguru (15 ft)Elefante bat, gaur egungo lehorreko animaliarik handiena 6,5 m inguru (21 ft)

Zein altua zen?

Txakur bat0,5 m inguru (1,6 ft)Zaldi bat1,6 m inguru (5,2 ft)Dilophosaurus1,75 m inguru altu (5,7 ft)Elefante bat3,2 m inguru (10 ft)

Zein astuna zen?

20 txakur bezain astun
6 txakur bezain luze, sudurretik buztanerabata bestearen atzean jarritako 33 banana bezain luze80 angurria bezain astunhaur-eskolako 21 haur bezain astun12 eskolaume bezain astun100 metro 9,5 segundotan egin zitzakeen korrika (gizakirik azkarrenak 9,6 behar ditu)

Zein handia zen Dilophosaurus ZUREKIN alderatuta?

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

Zein azkarra zen?

gauza bikainak

Datu dibertigarriak

1

Dilophosaurus had two thin crests on its head made from the nasal and lacrimal bones. These crests might have been used for display or to attract mates.12

2

Its jaws were strong enough to puncture bone, and it may have been the top predator in its ecosystem.1

3

Some scientists think Dilophosaurus might have eaten fish. Its jaws had a 'rosette' of interlocking teeth like modern fish-eating crocodiles and gharials.1

4

Dilophosaurus breathed like a bird. Air sacs in its bones allowed unidirectional airflow in its lungs, which gave it more oxygen and made it a fast, active hunter.1

5

Fossil footprints of Dilophosaurus have been found, including traces where it rested.1

6

It lived in a seasonally dry environment with rivers and sand dunes, like a river oasis surrounded by a desert.1

7

Dilophosaurus was the largest land animal in North America during the Early Jurassic, bigger than any other predator at that time.2

AAk eginaDilophosaurus: AAk egindako irudia
Dilophosaurus 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

Dilophosaurus: gehien egindako galderak

?How big was Dilophosaurus?

About 7 metres (23 ft) long and weighed around 400 kg (880 lb). It was one of the earliest large predatory dinosaurs.1

?Did Dilophosaurus have feathers?

The sources do not say whether Dilophosaurus had feathers. No fossil evidence of feathers has been found for this dinosaur.1

?Could Dilophosaurus spit venom?

No. That was made up for the movie Jurassic Park. The real Dilophosaurus did not spit venom.1

?What did Dilophosaurus eat?

It was a meat-eater that probably hunted large animals, smaller animals, and maybe fish. Its strong jaws could even puncture bone.1

?How fast could Dilophosaurus run?

Up to about 38 km/h (24 mph), about as fast as a fast human runner. A computer model of its legs and muscles worked this out. It was a fast, agile hunter.3

?Why did Dilophosaurus have crests?

Nobody knows for sure, but they were probably used for display, like to recognize other Dilophosaurus or attract mates. They were too weak for fighting.1

?Was Dilophosaurus bigger than T. rex?

No. Dilophosaurus was about 7 metres (23 ft) long, much smaller than Tyrannosaurus rex, which could be over 12 metres (39 ft) long.1

?When did Dilophosaurus live?

It lived during the Early Jurassic, about 186 million years ago.1

?Is Dilophosaurus a dinosaur?

Yes, it is a theropod dinosaur, a type of meat-eating dinosaur.1

?Where was Dilophosaurus found?

Its fossils were discovered in northern Arizona, in the Kayenta Formation, on Navajo land.1

Mito-hauslea

Mitoa: Dilophosaurus could spit venom like in the movie Jurassic Park.

Egia: There is no evidence that Dilophosaurus spat venom. It was a large predator with strong jaws and teeth, not a small frilled dinosaur that spits poison.1

Dino adituentzat

Izen zientifikoa
Dilophosaurus
Izendatzailea:
Welles 19704
Taldea
Dino haragijaleak
Familia / klada
Neotheropoda4
Sailkapena
Theropoda4
Arroken adina
201 eta 184 milioi urte artean (Hettangian / Pliensbachian)4
Arroka-formazioak
Kayenta, Dharmaram4
Herrialdeak
AEB, India4
Fosil-erregistroak
14 The Paleobiology Database datu-basean4
Aurkikuntza
Three skeletons were found in northern Arizona in 1940 and collected in 1942. Scientist Samuel P. Welles named the first specimen Megalosaurus wetherilli in 1954. After finding a larger skeleton with crests, he renamed it Dilophosaurus wetherilli in 1970.1
Oraindik eztabaidagai
Scientists still debate whether Dilophosaurus was a fast predator that attacked large prey or a scavenger that ate smaller animals. Most now think it was an active hunter.1

Datuak nondik datozen

  1. Dilophosaurus (en.wikipedia.org)
  2. A comprehensive anatomical and phylogenetic evaluation of Dilophosaurus wetherilli (Dinosauria, Theropoda) with descriptions of new specimens from the Kayenta Formation of northern Arizona (bioone.org)
  3. The Real Dilophosaurus Would Have Eaten the Jurassic Park Version for Breakfast | Scientific American (scientificamerican.com)
  4. Dilophosaurus in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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