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Zavacephale: marrazkia
Dino txartela, 2006. zk. (2ย 027 guztira)

Zavacephale

Izenaren esanahia: “origin head”1
Jaten zuen: LandareakKupula-buruakBehe Kretazeoa

Zavacephale was a small, dome-headed dinosaur that lived in what is now Mongolia. It had a thick, rounded skull like a helmet, and it probably used it for head-butting contests. It is one of the oldest and most complete dome-headed dinosaurs ever found.12

Bizi izan zen
Duela 120 eta 100 milioi urte artean5
Behe Kretazeoa
Fosilak hemen aurkitu dira:
Khuren Dukh Formation, Dundgobi Province, Mongolia15
Luzera
1 m (3,3 ft)1
Pisua
5,85 kg (13 lb)1
Abiadura maximoa
29 km/h inguru (18 mph)
Korrika egitea, kalkulua

Noiz bizi izan zen?

Triasikoa
Jurasikoa
Kretazeoa
Duela 252 milioi urte20114566, asteroidea

Zein handia zen?

Zein luzea zen?

Zavacephale 1 m inguru luze (3,3 ft)Etxeko katu bat 0,5 m inguru (1,6 ft)Txakur bat 1 m inguru (3,3 ft)Heldu baten bizikleta 1,8 m inguru (5,9 ft)

Zein astuna zen?

1,5 etxeko katu bezain astun
2 etxeko katu bezain luze, sudurretik buztanerabata bestearen atzean jarritako 6 banana bezain luzeetxeko katu bat bezain astun, gutxi gorabehera49 banana bezain astun100 metro 12 segundotan egin zitzakeen korrika (gizakirik azkarrenak 9,6 behar ditu)

Zein handia zen Zavacephale ZUREKIN alderatuta?

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

Zein azkarra zen?

gauza bikainak

Datu dibertigarriak

1

Zavacephale is the oldest known dome-headed dinosaur, living about 119 to 100 million years ago during the Early Cretaceous.12

2

Its skeleton is about 54% complete, making it the most complete pachycephalosaur ever found.1

3

It is the first pachycephalosaur to preserve hand bones and a mass of gastroliths (stomach stones).12

4

Unlike later dome-heads, Zavacephale's dome was made mostly of the frontal bone, with little help from the parietal bone.1

5

The tail of Zavacephale was covered in stiff tendons, but they did not form the 'caudal basket' seen in later pachycephalosaurs.1

6

The dome grew early in life, before the animal reached full size, which suggests it was important for social displays or head-butting even in young animals.2

AAk eginaZavacephale: AAk egindako irudia
Zavacephale 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

Zavacephale: gehien egindako galderak

?How big was Zavacephale?

About 1 metre long and weighed around 5.85 kilograms. That is about the size of a large domestic cat.13

?What did Zavacephale eat?

It was a plant-eater. It swallowed small stones called gastroliths to help grind up tough plants in its stomach.42

?Did Zavacephale have feathers?

The fossils don't show feathers, so scientists aren't sure. No feathers have been found on any pachycephalosaur.1

?Why did Zavacephale have a dome?

It probably used its thick, bony dome for head-butting contests with rivals, like rams do. The dome may also have been used for display to attract mates.4

?When did Zavacephale live?

It lived about 119 to 100 million years ago, during the Early Cretaceous Period. That makes it the oldest known dome-headed dinosaur.1

?Where was Zavacephale found?

Its fossil was discovered in the Gobi Desert of Mongolia, in the Khuren Dukh Formation.13

Mito-hauslea

Mitoa: Some people think all dome-headed dinosaurs used their domes for ramming each other like bighorn sheep.

Egia: Scientists are not sure. Zavacephale's dome was well developed even in a young animal, so it might have been for showing off or fighting, but the exact use is still debated.2

Dino adituentzat

Izen zientifikoa
Zavacephale
Izendatzailea:
Chinzorig et al. 20255
Taldea
Kupula-buruak
Familia / klada
Pachycephalosauria5
Sailkapena
Ornithischia > Pachycephalosauria5
Arroken adina
120 eta 100 milioi urte artean (Aptian / Albian)5
Arroka-formazioak
Khuren Dukh5
Herrialdeak
Mongolia5
Fosil-erregistroak
1 The Paleobiology Database datu-basean5
Aurkikuntza
The fossil was found in 2019 in the Khuren Dukh Formation of Mongolia, and it was formally named by Tsogtbaatar Chinzorig and colleagues in 2025.12
Oraindik eztabaidagai
Scientists are still debating how the dome was used, whether for head-butting, display, or something else.2

Datuak nondik datozen

  1. Zavacephale (en.wikipedia.org)
  2. A domed pachycephalosaur from the early Cretaceous of Mongolia | Nature (nature.com)
  3. Best fossil of a dome-headed dinosaur is unearthed in Mongolia | Reuters (reuters.com)
  4. New dome-headed dinosaur species is the most complete pachycephalosaur ever found | Natural History Museum (nhm.ac.uk)
  5. Zavacephale in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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