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Acrocanthosaurus

Il num vul dir: “high-spined lizard”1

Mangiava: CharnDinos carnivorsCretacic tempriv fin Cretacic tardiv

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

Viveva

avant 121 fin 94 milliuns onns4

Cretacic tempriv fin Cretacic tardiv

Fossils chattads en

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

Lunghezza

fin 12 m (39 ft)1

Paisa

fin 2,6 tonnas (5 700 lb)2

Autezza

fin 4 m (13 ft)2

Spertadad maximala

var 28 km/h (17 mph)

Currer, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant grond era el?

Quant lung era el?

Quant aut era el?

Quant grev era el?

uschè grev sco 1,5 autos

uschè lung sco 2,5 autos parcads in suenter l'auteruschè lung sco 67 bananas ina suenter l'autrauschè grev sco 130 chaunsuschè grev sco 520 melunasuschè grev sco 3 classas da scola entirasuschè grev sco 6 urs polarspudess currer 100 meters en 13 secundas (il pli spert uman dovra 9,6)

Quant grond era Acrocanthosaurus cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn arcunà u tramess.

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Acrocanthosaurus var 28 km/h (17 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

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

Maletg da Acrocanthosaurus fatg cun IA — In maletg fatg cun IA che mussa co Acrocanthosaurus pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

tias dumondas

Las dumondas las pli frequentas davart 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

Chatschader da mitus

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

Vardad: 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

Per experts da dinos

Num scientific: Acrocanthosaurus
Numnà da: Stovall and Langston 19504
Gruppa: Dinos carnivors
Famiglia / clada: Carcharodontosauridae4
Classificaziun: Theropoda > Allosauroidea > Carcharodontosauridae4
Vegliadetgna da la crappa: 121 fin 94 milliuns onns (Aptian / Cenomanian)4
Formaziuns da crap: Antlers, Cloverly, Arundel Clay4
Pajais: USA4
Chats da fossils: 14 en The Paleobiology Database4
Scuverta: 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
Anc discutà: 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

Danunder che vegnan ils fatgs

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): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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