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Karete ya dinosaure No. 1167 ho tse 2 027

Meraxes

Lebitso le bolela: “named after a dragon from the Song of Ice and Fire books, and gigas means giant in Greek”1

E jele: NamaDidinosaure tse jang namaKretase ya Pele

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.1 2

E phetse

dilemo tse dimilione tse 110 ho isa ho 106 tse fetileng5

Kretase ya Pele

Difosili di fumanwe ho

Huincul Formation, Neuquén Province, Patagonia, Argentina1 2

Bolelele

9 ho isa ho 11.6 m (30 ho isa ho 38 ft)2

Boima

ditone tse 4.263 (9,400 lb)1

Bophahamo

3.4 m (11 ft)

kakanyo

Lebelo le phahameng ka ho fetisisa

e ka bang 24 km/h (15 mph)

Ho matha, kakanyo

E phetse neng?

Triasiki

Jurasiki

Kretase

Dilemo tse dimilione tse 252 tse fetileng20114566, asteroiti

E ne e le kgolo hakae?

E ne e le telele hakae?

E ne e phahame hakae?

kakanyo

E ne e le boima hakae?

boima jwaloka dikoloi tse 3

telele jwaloka dikoloi tse 2.5 tse pakilweng ka molatelele jwaloka dibanana tse 64 di behilwe ka molaboima jwaloka dintja tse 210boima jwaloka mahapu a 850boima jwaloka ditlelase tse feletseng tse 5 tsa bana ba sekoloboima jwaloka dibere tse tshweu tse 9e ne e ka matha dimitara tse 100 ka metsotswana e 15 (motho ya lebelo ka ho fetisisa o hloka 9,6)

Meraxes e ne e le kgolo hakae ha e bapiswa le WENA?

Ke dipalo feela ho browser ya hao. Ha ho letho le bolokwang kapa le romelwang kae kapa kae.

E ne e le lebelo hakae?

Motho ya tsamayang ka maoto e ka bang 5 km/h (3 mph)

Ngwana a palame baesekele e ka bang 12 km/h (7 mph)

Meraxes e ka bang 24 km/h (15 mph)

Pere e mathang ka matla e ka bang 65 km/h (40 mph)

Lengau e ka bang 100 km/h (62 mph)

dintho tse monate

Dintlha tse monate

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

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

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

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

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

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

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

Setshwantsho sa Meraxes se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Meraxes e ka beng e ne e shebahala kateng, se entswe ke khomphutha ho ya ka seo bo-ramahlale ba se tsebang. Ke ho hakanya feela: phoofolo ya nnete e ka nna ya ba e ne e shebahala ka tsela e nngwe, mme ha ho motho ya tsebang mebala ya yona ya nnete.

o botsitse

Dipotso tse botswang haholo ka 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.1 2

?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.1 4

?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

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense: Meraxes
E rehilwe ke: Canale et al. 20225
Sehlopha: Didinosaure tse jang nama
Lelapa / leloko: Carcharodontosauridae5
Tlhophiso: Theropoda > Allosauroidea > Carcharodontosauridae5
Dilemo tsa mafika: dilemo tse dimilione tse 110 ho isa ho 106 (Albian)5
Dibopeho tsa mafika: Huincul5
Dinaha: Argentina5
Direkoto tsa difosili: 1 ho The Paleobiology Database5
Ho sibollwa: 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.2 1
E sa ntse e phehwa kgang: Scientists are not sure exactly how long Meraxes was, because different ways of measuring give different lengths.2

Moo dintlha di tswang teng

New giant carnivorous dinosaur reveals convergent evolutionary trends in theropod arm reduction: Current Biology (cell.com)
Meraxes (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Newly discovered dinosaur had tiny arms like T. rex | National Geographic (nationalgeographic.com)
Meraxes in The Paleobiology Database (CC BY 4.0): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

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