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Karete ya dinosaure No. 0020 ho tse 2 027

Acrocanthosaurus

Lebitso le bolela: “high-spined lizard”1

E jele: NamaDidinosaure tse jang namaKretase ya Pele ho isa ho Kretase ya Morao

Acrocanthosaurus was a huge meat-eating dinosaur that lived in North America about 110 million years ago. It had a row of tall spines along its back, neck and tail that made it look like a giant lizard with a fin. It was the biggest predator in its time, even before T. rex appeared.1 2

E phetse

dilemo tse dimilione tse 121 ho isa ho 94 tse fetileng4

Kretase ya Pele ho isa ho Kretase ya Morao

Difosili di fumanwe ho

Oklahoma, Texas, Maryland, and possibly other southeastern states, USA2 4

Bolelele

ho fihla ho 12 m (39 ft)1

Boima

ho fihla ho ditone tse 2.6 (5,700 lb)2

Bophahamo

ho fihla ho 4 m (13 ft)2

Lebelo le phahameng ka ho fetisisa

e ka bang 28 km/h (17 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?

E ne e le boima hakae?

boima jwaloka dikoloi tse 1.5

telele jwaloka dikoloi tse 2.5 tse pakilweng ka molatelele jwaloka dibanana tse 67 di behilwe ka molaboima jwaloka dintja tse 130boima jwaloka mahapu a 520boima jwaloka ditlelase tse feletseng tse 3 tsa bana ba sekoloboima jwaloka dibere tse tshweu tse 6e ne e ka matha dimitara tse 100 ka metsotswana e 13 (motho ya lebelo ka ho fetisisa o hloka 9,6)

Acrocanthosaurus 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)

Acrocanthosaurus e ka bang 28 km/h (17 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

Acrocanthosaurus had 68 thin, knife-like teeth in its 1.4 metre long skull.2

Its arms were each about 0.9 metres long and ended in three sharp, curved claws used to grip and tear prey.2

Fossilized footprints show that Acrocanthosaurus ran alongside its prey and then lunged, attacking like a modern lion but slower.2

Only four skeletons of Acrocanthosaurus have ever been found, making it a very rare dinosaur.2

Acrocanthosaurus lived about 110 million years ago, which is 45 million years before T. rex walked the Earth.2

Its eyes faced sideways, so it had to tilt its head to look at prey with one eye.2

Setshwantsho sa Acrocanthosaurus se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Acrocanthosaurus 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 Acrocanthosaurus

?How big was Acrocanthosaurus?

Acrocanthosaurus was about 11 to 11.5 metres (36 to 38 ft) long and weighed between 4.4 and 8.4 metric tons (4.9 and 9.3 short tons).3 1

?Was Acrocanthosaurus bigger than T. rex?

No, T. rex was generally heavier and more robust. While length estimates are similar, T. rex was typically bulkier than Acrocanthosaurus.2

?What did Acrocanthosaurus eat?

Acrocanthosaurus was a meat-eater that preyed on dinosaurs larger than itself, like the sauropod Pleurocoelus, as well as ornithopods and ankylosaurs.2 3

?When did Acrocanthosaurus live?

Acrocanthosaurus lived during the Early Cretaceous Period, about 110 million years ago, which is 45 million years before T. rex appeared.2 1

?Why did Acrocanthosaurus have a fin on its back?

Scientists are unsure what the tall spines on its back were for. They might have helped control body temperature, store fat, or communicate with others.2 3

?How fast could Acrocanthosaurus run?

Acrocanthosaurus probably could not run very fast. Its leg bones suggest it was not a fast runner, and it attacked like a modern lion but at a slower pace.3 2

?Where was Acrocanthosaurus found?

Acrocanthosaurus fossils have been found in Oklahoma, Texas, Wyoming, and Maryland in the United States. It lived across much of North America.3 1

?Is Acrocanthosaurus related to T. rex?

No, Acrocanthosaurus belonged to a different family of dinosaurs. It was more closely related to Allosaurus than to T. rex.2

Mosenyi wa ditshomo

Tshomo: Acrocanthosaurus is a type of tyrannosaur, related to T. rex.

Nnete: Acrocanthosaurus belonged to a different family called Carcharodontosauridae, more closely related to Allosaurus. Tyrannosaurs had two fingers on each hand, while Acrocanthosaurus had three.2

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense: Acrocanthosaurus
E rehilwe ke: Stovall and Langston 19504
Sehlopha: Didinosaure tse jang nama
Lelapa / leloko: Carcharodontosauridae4
Tlhophiso: Theropoda > Allosauroidea > Carcharodontosauridae4
Dilemo tsa mafika: dilemo tse dimilione tse 121 ho isa ho 94 (Aptian / Cenomanian)4
Dibopeho tsa mafika: Antlers, Cloverly, Arundel Clay4
Dinaha: Amerika4
Direkoto tsa difosili: 14 ho The Paleobiology Database4
Ho sibollwa: Acrocanthosaurus was named in 1950 by paleontologists J. Willis Stovall and Wann Langston, Jr. The first fossils were found in Atoka County, Oklahoma, which gave the species its name atokensis.1 2
E sa ntse e phehwa kgang: Scientists are not sure what the tall spines on Acrocanthosaurus's back were used for. They might have helped control body temperature or been used for display.2

Moo dintlha di tswang teng

Acrocanthosaurus | Natural History Museum (nhm.ac.uk)
Frequently Asked Questions (naturalsciences.org)
Acrocanthosaurus (en.wikipedia.org)
Acrocanthosaurus in The Paleobiology Database (CC BY 4.0): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

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