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Gualicho

Naam beteken: “named after the gualichu, a demon from local folklore”1

Het geëet: VleisTirannosourusseVroeë Kryt

Gualicho was a medium-sized meat-eating dinosaur that lived in what is now Argentina. It had very short arms with only two fingers, a bit like a tiny T. rex! Scientists are still arguing about which group of theropods it belongs to.1 2

Het geleef

110 tot 106 miljoen jaar gelede4

Vroeë Kryt

Fossiele gevind in

Río Negro Province, northern Patagonia, Argentina1 2

Lengte

6 tot 7 m (20 tot 23 ft)1

Hoogte

2,3 m (7,5 ft)

skatting

Topspoed

omtrent 34 km/h (21 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 hoog was dit?

skatting

so lank soos 7 honde van neus tot stertso lank soos 39 piesangs punt aan puntkon 100 meter in 11 sekondes hardloop (die vinnigste mens het 9,6 nodig)

Hoe groot was Gualicho 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)

Gualicho omtrent 34 km/h (21 mph)

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

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

cool goed

Prettige feite

Gualicho had only two fingers on each hand. The third finger was reduced to a tiny splint of bone.1 2

Its arms were very short, similar to the arms of Tyrannosaurus rex. This is an example of convergent evolution.1 2

The fossil was discovered on February 13, 2007, by Akiko Shinya, a preparator from the Field Museum of Natural History.1

Gualicho lived about 106 million years ago during the Early Cretaceous period.1

The skeleton was found in the Huincul Formation, which also produced the giant sauropod Argentinosaurus and the huge predator Mapusaurus.2

Scientists are not sure if Gualicho is a type of allosauroid or a tyrannosauroid. Different studies place it in different groups.1 4

The name Gualicho comes from a demon in the folklore of the Tehuelche people of Patagonia.1 2

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

?How big was Gualicho?

About 6 to 7 metres long. It weighed around 450 kilograms, which is about as much as a large polar bear.1 3

?Did Gualicho have feathers?

Nobody knows for sure. No feathers were found with the fossil, and it is not closely related to known feathered dinosaurs.1

?What did Gualicho eat?

It was a meat-eater, like other theropod dinosaurs. It probably hunted smaller animals or scavenged.1

?Why did Gualicho have short arms?

Scientists are not sure. Its arms were very short with only two fingers, similar to T. rex, but this evolved separately.3

?Is Gualicho a dinosaur?

Yes, it is a theropod dinosaur. It lived about 106 million years ago in what is now Argentina.1

?Was Gualicho bigger than T. rex?

No, it was much smaller. Gualicho was about 6 to 7 metres long, while T. rex could reach over 12 metres.1

Mite-breker

Mite: Gualicho is a small relative of Tyrannosaurus rex.

Waarheid: Gualicho is not a close relative of T. rex. It is probably an allosauroid, a different branch of meat-eating dinosaurs. Its two-fingered hands evolved separately.1 2

Vir dino-kenners

Wetenskaplike naam: Gualicho
Benoem deur: Apesteguia et al. 20164
Groep: Tirannosourusse
Familie / klade: Tyrannosauroidea4
Klassifikasie: Theropoda > Tyrannosauroidea4
Ouderdom van die rotse: 110 tot 106 miljoen jaar (Albian)4
Rotsformasies: Huincul4
Lande: Argentinië4
Fossielrekords: 1 in The Paleobiology Database4
Ontdekking: The only known fossil of Gualicho was found in 2007 by Akiko Shinya at a site called Violante's field in Argentina. It was named and described in 2016 by Sebastián Apesteguía and colleagues.1 2
Steeds omstrede: Scientists debate whether Gualicho is an allosauroid or a tyrannosauroid. Its exact place on the dinosaur family tree is still uncertain.1 4

Waar die feite vandaan kom

Gualicho (en.wikipedia.org)
An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina (journals.plos.org)
Newly-discovered dinosaur had “T. rex arms” that evolved independently - Field Museum (fieldmuseum.org)
Gualicho in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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