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Debuxo de Gualicho
Tarxeta de dino n.º 0761 de 2 027

Gualicho

O nome significa: “named after the gualichu, a demon from local folklore”1
Comía: CarneTiranosaurosCretáceo Inferior

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.12

Viviu
hai entre 110 e 106 millóns de anos4
Cretáceo Inferior
Fósiles atopados en
Río Negro Province, northern Patagonia, Argentina12
Lonxitude
6 a 7 m (20 a 23 ft)1
Altura
2,3 m (7,5 ft)
estimación
Velocidade máxima
uns 34 km/h (21 mph)
Correr, estimación

Cando viviu?

Triásico
Xurásico
Cretáceo
Hai 252 millóns de anos20114566, o asteroide

Como era de grande?

Canto medía de longo?

Gualicho uns 7 m de longo (23 ft)Unha bici de adulto uns 1,8 m (5,9 ft)Un coche uns 4,5 m (15 ft)Un elefante, o animal terrestre máis grande de hoxe uns 6,5 m (21 ft)

Canto medía de alto?

Un canuns 0,5 m (1,6 ft)Un cabalouns 1,6 m (5,2 ft)Gualichouns 2,3 m de alto (7,5 ft)Un elefanteuns 3,2 m (10 ft)

estimación

tan longo coma 7 cans do fociño á colatan longo coma 39 plátanos postos un tras outropodería correr 100 metros en 11 segundos (o humano máis rápido necesita 9,6)

Como era de grande Gualicho comparado CONTIGO?

Só son contas no teu navegador. Non se garda nin se envía nada.

Que velocidade alcanzaba?

cousas xeniais

Datos curiosos

1

Gualicho had only two fingers on each hand. The third finger was reduced to a tiny splint of bone.12

2

Its arms were very short, similar to the arms of Tyrannosaurus rex. This is an example of convergent evolution.12

3

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

4

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

5

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

6

Scientists are not sure if Gualicho is a type of allosauroid or a tyrannosauroid. Different studies place it in different groups.14

7

The name Gualicho comes from a demon in the folklore of the Tehuelche people of Patagonia.12

Feito con IAImaxe de Gualicho feita con IA
Unha imaxe feita con IA de como podería ser Gualicho, creada por un ordenador a partir do que saben os científicos. É unha suposición: o animal real podía ser diferente, e ninguén sabe as súas cores de verdade.
ti preguntaches

As preguntas máis frecuentes sobre 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.13

?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

Cazamitos

Mito: Gualicho is a small relative of Tyrannosaurus rex.

Verdade: 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.12

Para expertos en dinos

Nome científico
Gualicho
Bautizado por
Apesteguia et al. 20164
Grupo
Tiranosauros
Familia / clado
Tyrannosauroidea4
Clasificación
Theropoda > Tyrannosauroidea4
Idade das rochas
de 110 a 106 millóns de anos (Albian)4
Formacións rochosas
Huincul4
Países
Arxentina4
Rexistros fósiles
1 na Paleobiology Database4
Descubrimento
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.12
Aínda en debate
Scientists debate whether Gualicho is an allosauroid or a tyrannosauroid. Its exact place on the dinosaur family tree is still uncertain.14

De onde veñen os datos

  1. Gualicho (en.wikipedia.org)
  2. An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina (journals.plos.org)
  3. Newly-discovered dinosaur had “T. rex arms” that evolved independently - Field Museum (fieldmuseum.org)
  4. Gualicho in The Paleobiology Database (CC BY 4.0): idade, lugares, formacións rochosas, clasificación.

Cada dato desta páxina ten un número que leva á súa fonte. Se nos equivocamos nalgo, sentímolo, somos fans dos dinos, non unha revista científica. Escríbenos a [email protected] e arranxámolo.

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