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Acrocanthosaurus

Izina risobanura: “high-spined lizard”1

Yaryaga: InyamaDinozore zirya inyamaKiretase ya mbere kugeza Kiretase ya nyuma

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

Yabayeho

hashize imyaka miliyoni 121 kugeza 944

Kiretase ya mbere kugeza Kiretase ya nyuma

Ibisigazwa byabonetse muri

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

Uburebure

kugeza kuri 12 m (39 ft)1

Uburemere

kugeza kuri toni 2,6 (5 700 lb)2

Ubutumburuke

kugeza kuri 4 m (13 ft)2

Umuvuduko wo hejuru

nka 28 km/h (17 mph)

Kwiruka, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

Ubutumburuke bwayo bwanganaga iki?

Yari iremereye ite?

iremereye nk'imodoka 1,5

ndende nk'imodoka 2,5 ziparitse ku murongondende nk'imineke 67 ikurikiranyeiremereye nk'imbwa 130iremereye nk'imbuto 520 za watermeloniremereye nk'ibyumba 3 by'amashuri byuzuye abanairemereye nk'idubu 6 zo mu ruburayashoboraga kwiruka metero 100 mu masegonda 13 (umuntu wihuta kurusha abandi akenera 9,6)

Acrocanthosaurus yanganaga ite ugereranyije NAWE?

Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.

Yihutaga ite?

Umuntu ugenda n'amaguru nka 5 km/h (3 mph)

Umwana ku igare nka 12 km/h (7 mph)

Acrocanthosaurus nka 28 km/h (17 mph)

Ifarashi yiruka cyane nka 65 km/h (40 mph)

Ingwe yihuta cyane nka 100 km/h (62 mph)

utuntu twiza cyane

Utuntu dushimishije

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

Ishusho ya Acrocanthosaurus yakozwe na AI — Ishusho yakozwe na AI yerekana uko Acrocanthosaurus ishobora kuba yari isa, yakozwe na mudasobwa hashingiwe ku byo abahanga bazi. Ni ugukeka gusa: inyamaswa nyayo ishobora kuba yari isa ukundi, kandi nta muntu uzi amabara yayo nyayo.

wabajije

Ibibazo bibazwa cyane kuri 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

Gusenya ibinyoma

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

Ukuri: 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

Ku bazobereye muri dinozore

Izina rya siyansi: Acrocanthosaurus
Yiswe na: Stovall and Langston 19504
Itsinda: Dinozore zirya inyama
Umuryango / ishami: Carcharodontosauridae4
Ishyirwa mu byiciro: Theropoda > Allosauroidea > Carcharodontosauridae4
Imyaka y'amabuye: imyaka miliyoni 121 kugeza 94 (Aptian / Cenomanian)4
Inzego z'amabuye: Antlers, Cloverly, Arundel Clay4
Ibihugu: Amerika4
Ibisigazwa byanditswe: 14 muri The Paleobiology Database4
Ivumburwa: 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
Biracyagibwaho impaka: 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

Aho amakuru yakuwe

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): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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