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Kaadi ya dayinoso No. 0020 ku 2 027

Acrocanthosaurus

Erinnya litegeeza: “high-spined lizard”1

Yalyanga: EnnyamaDayinoso ezirya ennyamaEntandikwa ya Kuretasi okutuuka ku Enkomerero ya Kuretasi

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

Yabeerawo

emyaka obukadde 121 okutuuka ku 94 emabega4

Entandikwa ya Kuretasi okutuuka ku Enkomerero ya Kuretasi

Ebisigalira byazuulibwa mu

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

Obuwanvu

okutuuka ku 12 m (39 ft)1

Obuzito

okutuuka ku ttani 2.6 (5,700 lb)2

Obugulumivu

okutuuka ku 4 m (13 ft)2

Sipiidi esinga

nga 28 km/h (17 mph)

Okudduka, kuteebereza

Yabeerawo ddi?

Tiriyasi

Jurasiki

Kuretasi

Emyaka obukadde 252 emabega20114566, asteroyidi

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obuzito ng'obw'emmotoka 1.5

obuwanvu ng'emmotoka 2.5 ezisimbiddwa mu lunyiririobuwanvu ng'amenvu 67 nga gaddiriŋŋanaobuzito ng'obw'embwa 130obuzito ng'obwa wotamerooni 520obuzito ng'obw'ebibiina 3 ebijjuvu eby'abaana b'essomeroobuzito ng'obwa ddubu enjeru 6yandidduse mita 100 mu sikonda 13 (omuntu asinga embiro yeetaaga 9.6)

Acrocanthosaurus yali munene atya bw'ogeraageranya ku GGWE?

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Yali wa mbiro kwenkana wa?

Omuntu atambula nga 5 km/h (3 mph)

Omwana ku kagaali nga 12 km/h (7 mph)

Acrocanthosaurus nga 28 km/h (17 mph)

Embalaasi edduka ennyo nga 65 km/h (40 mph)

Cheetah nga 100 km/h (62 mph)

ebintu ebinyuvu

Ebyewuunyisa

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

Ekifaananyi kya Acrocanthosaurus ekyakolebwa AI, nga kiraga engeri gye yayinza okuba ng'afaanana, ekyakolebwa kompyuta okusinziira ku ebyo bannassaayansi bye bamanyi. Kuteebereza: ekisolo ekyennyini kiyinza okuba nga kyali kifaanana bulala, era tewali amanyi langi zaakyo ez'amazima.

wabuuza

Ebibuuzo ebisinga okubuuzibwa ku 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

Omumenyi w'enfumo

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

Amazima: 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

Eri abakugu mu dayinoso

Erinnya lya ssaayansi: Acrocanthosaurus
Yatuumibwa: Stovall and Langston 19504
Ekibinja: Dayinoso ezirya ennyama
Ekika / ekibinja: Carcharodontosauridae4
Engabanya: Theropoda > Allosauroidea > Carcharodontosauridae4
Emyaka gy'enjazi: emyaka obukadde 121 okutuuka ku 94 (Aptian / Cenomanian)4
Ensengeka z'enjazi: Antlers, Cloverly, Arundel Clay4
Ensi: Amerika4
Ebisigalira ebyazuulibwa: 14 mu The Paleobiology Database4
Okuzuulibwa: 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
Kikyakubaganyizibwako ebirowoozo: 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

Ebituufu gye biva

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): emyaka, ebifo, ensengeka z'enjazi, engabanya.

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