Dinokaart nr. 2006 van 2 027

Zavacephale

Naam beteken: “origin head”1

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.1 2

Het geleef

120 tot 100 miljoen jaar gelede5

Vroeë Kryt

Fossiele gevind in

Khuren Dukh Formation, Dundgobi Province, Mongolia1 5

Lengte

1 m (3,3 ft)1

Gewig

5,85 kg (13 lb)1

Topspoed

omtrent 29 km/h (18 mph)

Hardloop, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

Hoe groot was dit?

Hoe lank was dit?

Hoe swaar was dit?

so swaar soos 1,5 huiskatte

so lank soos 2 huiskatte van neus tot stertso lank soos 6 piesangs punt aan puntomtrent so swaar soos 'n huiskatso swaar soos 49 piesangskon 100 meter in 12 sekondes hardloop (die vinnigste mens het 9,6 nodig)

Hoe groot was Zavacephale vergeleke met JOU?

Net wiskunde in jou blaaier. Niks word gestoor of êrens heen gestuur nie.

Hoe vinnig was dit?

'n Mens wat loop omtrent 5 km/h (3 mph)

'n Kind op 'n fiets omtrent 12 km/h (7 mph)

Zavacephale omtrent 29 km/h (18 mph)

'n Galopperende perd omtrent 65 km/h (40 mph)

'n Jagluiperd omtrent 100 km/h (62 mph)

cool goed

Prettige feite

Zavacephale is the oldest known dome-headed dinosaur, living about 119 to 100 million years ago during the Early Cretaceous.1 2

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

It is the first pachycephalosaur to preserve hand bones and a mass of gastroliths (stomach stones).1 2

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

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

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

KI-prent van Zavacephale — 'n KI-prent van hoe Zavacephale dalk gelyk het, deur 'n rekenaar gemaak uit wat wetenskaplikes weet. Dit is 'n raaiskoot: die regte dier het dalk anders gelyk, en niemand weet wat sy regte kleure was nie.

julle het gevra

Mees gevraagde vrae oor Zavacephale

?How big was Zavacephale?

About 1 metre long and weighed around 5.85 kilograms. That is about the size of a large domestic cat.1 3

?What did Zavacephale eat?

It was a plant-eater. It swallowed small stones called gastroliths to help grind up tough plants in its stomach.4 2

?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.1 3

Mite-breker

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

Waarheid: 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

Vir dino-kenners

Wetenskaplike naam: Zavacephale
Benoem deur: Chinzorig et al. 20255
Groep: Koepelkoppe
Familie / klade: Pachycephalosauria5
Klassifikasie: Ornithischia > Pachycephalosauria5
Ouderdom van die rotse: 120 tot 100 miljoen jaar (Aptian / Albian)5
Rotsformasies: Khuren Dukh5
Lande: Mongolië5
Fossielrekords: 1 in The Paleobiology Database5
Ontdekking: The fossil was found in 2019 in the Khuren Dukh Formation of Mongolia, and it was formally named by Tsogtbaatar Chinzorig and colleagues in 2025.1 2
Steeds omstrede: Scientists are still debating how the dome was used, whether for head-butting, display, or something else.2

Waar die feite vandaan kom

Zavacephale (en.wikipedia.org)
A domed pachycephalosaur from the early Cretaceous of Mongolia | Nature (nature.com)
Best fossil of a dome-headed dinosaur is unearthed in Mongolia | Reuters (reuters.com)
New dome-headed dinosaur species is the most complete pachycephalosaur ever found | Natural History Museum (nhm.ac.uk)
Zavacephale in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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