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Raptorex

Naam beteken: “robber king”1

Het geëet: VleisTirannosourusseVroeë Kryt tot Laat Kryt

Raptorex was a tiny cousin of T. rex that lived about 70 million years ago. It had a big head, long legs for running, and tiny arms with just two fingers. Even though it was small, it already looked like a mini version of the giant tyrannosaurs!1

Het geleef

126 tot 66 miljoen jaar gelede4

Vroeë Kryt tot Laat Kryt

Fossiele gevind in

Mongolia (probably Nemegt Formation)1

Lengte

2,5 tot 3 m (8,2 tot 9,8 ft)1

Gewig

65 kg (143 lb)1

Topspoed

omtrent 50 km/h (31 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 3 honde

so lank soos 3 honde van neus tot stertso lank soos 17 piesangs punt aan puntso swaar soos 13 waatlemoeneso swaar soos 3 kleuterskoolkindersso swaar soos 2 skoolkinderskon 100 meter in 7,2 sekondes hardloop (die vinnigste mens het 9,6 nodig)

Hoe groot was Raptorex 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)

Raptorex omtrent 50 km/h (31 mph)

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

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

cool goed

Prettige feite

Raptorex is known from just one skeleton, which is a very young juvenile about three years old.1

Its tiny arms and big head are features that scientists once thought only appeared in giant tyrannosaurs, but Raptorex shows they evolved in small dinosaurs first.2

Many scientists now think Raptorex might actually be a baby Tarbosaurus, a close relative of T. rex from Mongolia.1

The only Raptorex fossil was bought at a gem and mineral show in Arizona before a scientist studied it.1

A fish bone found with the Raptorex skeleton helped scientists figure out that it probably came from the Late Cretaceous Nemegt Formation in Mongolia.1

Raptorex was about the size of a large dog, only 2.5 to 3 metres long and weighing around 65 kilograms.1

KI-prent van Raptorex — 'n KI-prent van hoe Raptorex 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 Raptorex

?How big was Raptorex?

About 2.5 to 3 metres (8.2 to 9.8 feet) long and weighed around 65 kilograms (143 pounds), about the size of a large human.1

?Was Raptorex a dinosaur?

Yes, Raptorex was a small tyrannosaurid dinosaur, a close cousin of T. rex.1

?Did Raptorex have feathers?

The sources don't say for sure, but many small tyrannosaurs had feathers. Since Raptorex was a juvenile, it might have had a light covering of feathers, but no direct evidence is known.1

?What did Raptorex eat?

Raptorex was a meat-eater, like other tyrannosaurs. It probably hunted small animals or scavenged, using its big head and sharp teeth.1

?Is Raptorex a baby Tarbosaurus?

Many scientists now think Raptorex might be a juvenile Tarbosaurus, a close relative of T. rex from Mongolia, because the only skeleton looks just like a baby Tarbosaurus.1 3

?When did Raptorex live?

It probably lived about 70 million years ago, during the Late Cretaceous period, in what is now Mongolia.1

Mite-breker

Mite: Some people think Raptorex is a separate species that lived in the Early Cretaceous, about 125 million years ago.

Waarheid: Scientists now agree that Raptorex is a juvenile tyrannosaur from the Late Cretaceous, about 70 million years ago, and it may be the same as Tarbosaurus.1

Vir dino-kenners

Wetenskaplike naam: Raptorex
Benoem deur: Sereno et al. 20094
Groep: Tirannosourusse
Familie / klade: Tyrannosauroidea4
Klassifikasie: Theropoda > Tyrannosauroidea4
Ouderdom van die rotse: 126 tot 66 miljoen jaar (Barremian / Maastrichtian)4
Lande: China4
Fossielrekords: 1 in The Paleobiology Database4
Ontdekking: The only Raptorex fossil was bought by Dr. Henry Kriegstein at a fossil show in Tucson, Arizona. He showed it to paleontologist Paul Sereno, who named it Raptorex kriegsteini in 2009.1
Steeds omstrede: Scientists still argue whether Raptorex is a valid genus or just a baby Tarbosaurus. More fossils are needed to settle the debate.1

Waar die feite vandaan kom

Raptorex (en.wikipedia.org)
Becoming T. rex | Science (science.org)
Reanalysis of “Raptorex kriegsteini”: A Juvenile Tyrannosaurid Dinosaur from Mongolia | PLOS One (journals.plos.org)
Raptorex in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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