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Debuxo de Meraxes
Tarxeta de dino n.º 1167 de 2 027

Meraxes

O nome significa: “named after a dragon from the Song of Ice and Fire books, and gigas means giant in Greek”1
Comía: CarneDinos carnívorosCretáceo Inferior

Meraxes was a huge, meat-eating dinosaur with very short arms, just like T. rex! It lived in what is now Argentina and had a skull longer than a tall adult human.12

Viviu
hai entre 110 e 106 millóns de anos5
Cretáceo Inferior
Fósiles atopados en
Huincul Formation, Neuquén Province, Patagonia, Argentina12
Lonxitude
9 a 11,6 m (30 a 38 ft)2
Peso
4,263 toneladas (9 400 lb)1
Altura
3,4 m (11 ft)
estimación
Velocidade máxima
uns 24 km/h (15 mph)
Correr, estimación

Cando viviu?

Triásico
Xurásico
Cretáceo
Hai 252 millóns de anos20114566, o asteroide

Como era de grande?

Canto medía de longo?

Meraxes uns 11,6 m de longo (38 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)Un elefanteuns 3,2 m (10 ft)Meraxesuns 3,4 m de alto (11 ft)

estimación

Canto pesaba?

tan pesado coma 3 coches
tan longo coma 2,5 coches aparcados en filatan longo coma 64 plátanos postos un tras outrotan pesado coma 210 canstan pesado coma 850 sandíastan pesado coma 5 clases enteiras de nenostan pesado coma 9 osos polarespodería correr 100 metros en 15 segundos (o humano máis rápido necesita 9,6)

Como era de grande Meraxes comparado CONTIGO?

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

Que velocidade alcanzaba?

cousas xeniais

Datos curiosos

1

Meraxes had arms that were only about half the length of its thigh bone, similar to T. rex and other giant meat-eaters.1

2

Its skull was 1.27 metres (4.2 feet) long, as big as the skull of Acrocanthosaurus.2

3

Meraxes is the most complete carcharodontosaurid skeleton ever found in the Southern Hemisphere.1

4

The second toe of Meraxes had an enormous claw, almost twice as long as the claw on its fourth toe.2

5

This dinosaur lived about 100 to 90 million years ago during the Cretaceous Period.3

6

Meraxes may have lived to be between 39 and 53 years old, making it one of the longest-lived meat-eating dinosaurs known.2

7

Its bones show that Meraxes grew to a huge size by taking a long time to grow, not by growing faster.2

Feito con IAImaxe de Meraxes feita con IA
Unha imaxe feita con IA de como podería ser Meraxes, 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 Meraxes

?How big was Meraxes?

About 9 to 10 metres long, and it weighed around 4.26 metric tons.2

?Did Meraxes have feathers?

The sources do not mention feathers on Meraxes. It is not known for sure, but many large theropods like Meraxes are usually shown without feathers.12

?Was Meraxes bigger than T. rex?

No, Meraxes was smaller than T. rex. T. rex could be over 12 metres long, while Meraxes was about 9 to 10 metres.2

?What did Meraxes eat?

Meraxes was a meat-eater that likely hunted large plant-eating dinosaurs, such as sauropods like Argentinosaurus and Limaysaurus that lived in the same area.2

?Why did Meraxes have tiny arms?

Scientists think its arms shrank as its head grew bigger, because the skull took over the job of catching prey. This happened in several giant meat-eating dinosaur groups, including Meraxes and T. rex.14

?When did Meraxes live?

Meraxes lived about 100 to 90 million years ago, during the Cretaceous Period.2

?Could Meraxes swim?

There is no information about whether Meraxes could swim. Like most large theropods, it probably stayed on land.2

?How fast could Meraxes run?

The sources do not give a speed for Meraxes. As a large predator, it was probably not very fast, but no exact speed is known.2

Para expertos en dinos

Nome científico
Meraxes
Bautizado por
Canale et al. 20225
Grupo
Dinos carnívoros
Familia / clado
Carcharodontosauridae5
Clasificación
Theropoda > Allosauroidea > Carcharodontosauridae5
Idade das rochas
de 110 a 106 millóns de anos (Albian)5
Formacións rochosas
Huincul5
Países
Arxentina5
Rexistros fósiles
1 na Paleobiology Database5
Descubrimento
The only known skeleton of Meraxes was found in 2012 in Argentina. Scientists named it in 2022 after a dragon from the Song of Ice and Fire books.21
Aínda en debate
Scientists are not sure exactly how long Meraxes was, because different ways of measuring give different lengths.2

De onde veñen os datos

  1. New giant carnivorous dinosaur reveals convergent evolutionary trends in theropod arm reduction: Current Biology (cell.com)
  2. Meraxes (en.wikipedia.org)
  3. PBDB Taxon (paleobiodb.org)
  4. Newly discovered dinosaur had tiny arms like T. rex | National Geographic (nationalgeographic.com)
  5. Meraxes 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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