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Dino kad No. 0020 wɔ 2 027 mu

Acrocanthosaurus

Din no ase: “high-spined lizard”1

Ɔdii: NamDino a wɔwe namKretasias Mfiase kɔsi Kretasias Awieeɛ

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

Ɔtenaa ase

mfeɛ ɔpepem 121 kɔsi 94 a atwam4

Kretasias Mfiase kɔsi Kretasias Awieeɛ

Wɔhunuu fɔsil wɔ

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

Tenten

kɔsi 12 m (39 ft)1

Mu duru

kɔsi ton 2.6 (5,700 lb)2

Korɔn

kɔsi 4 m (13 ft)2

Ntɛmntɛm a ɛsen biara

bɛyɛ 28 km/h (17 mph)

Mmirikatuo, nsusuiɛ

Berɛ bɛn na ɛtenaa ase?

Triasik

Jurasik

Kretasias

mfeɛ ɔpepem 252 a atwam20114566, ɔsoro ɛboɔ no

Na ne kɛseɛ yɛ sɛn?

Na ne tenten yɛ sɛn?

Na ne korɔn yɛ sɛn?

Na ne mu yɛ duru sɛn?

ne mu duru te sɛ kaa 1.5

ne tenten te sɛ kaa 2.5 a wɔde agyina toatoa sone tenten te sɛ kwadu 67 a wɔde abɔ toatoa sone mu duru te sɛ nkraman 130ne mu duru te sɛ watamɛlɔn 520ne mu duru te sɛ sukuu klaas mũ 3 mu mmofrane mu duru te sɛ polar bea 6anka ɔbɛtumi atu mmirika mita 100 wɔ sikɛn 13 mu (onipa a ɔyɛ ntɛm sen biara hia 9.6)

Acrocanthosaurus kɛseɛ yɛ sɛn sɛ wode toto WO ho a?

Akontaa nko ara wɔ wo browser mu. Yɛnkora biribiara so, na yɛmmfa biribiara nkɔ baabiara.

Na ɛyɛ ntɛm sɛn?

Onipa a ɔnante bɛyɛ 5 km/h (3 mph)

Abofra a ɔte sakre so bɛyɛ 12 km/h (7 mph)

Acrocanthosaurus bɛyɛ 28 km/h (17 mph)

Ɔpɔnkɔ a ɔretu mmirika bɛyɛ 65 km/h (40 mph)

Kyiita bɛyɛ 100 km/h (62 mph)

nneɛma a ɛyɛ fɛ

Nsɛm a ɛyɛ anigye

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

Yei yɛ Acrocanthosaurus mfonini a AI yɛeɛ, sɛdeɛ ebia na ɔteɛ. Kɔmputa na ɛyɛeɛ firi deɛ nyansahufoɔ nim mu. Ɛyɛ nsusuiɛ: ebia na aboa ankasa no nte saa, na obiara nnim ne kɔla ankasa.

wobisaeɛ

Nsɛm a wɔbisa bebree fa Acrocanthosaurus ho

?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

Atosɛm sɛefoɔ

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

Nokorɛ: 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

Ma dino ho animdefoɔ

Nyansahu din: Acrocanthosaurus
Obi a ɔtoo din: Stovall and Langston 19504
Kuo: Dino a wɔwe nam
Abusua / kuo kɛseɛ: Carcharodontosauridae4
Nkyekyɛmu: Theropoda > Allosauroidea > Carcharodontosauridae4
Abotan no mfeɛ: mfeɛ ɔpepem 121 kɔsi 94 (Aptian / Cenomanian)4
Abotan nhyehyɛeɛ: Antlers, Cloverly, Arundel Clay4
Aman: Amerika4
Fɔsil nkyerɛwee: 14 wɔ The Paleobiology Database mu4
Nhunumu: 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
Wɔda so gye ho akyinnye: 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

Baabi a nsɛm no firi

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): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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