ካርድ ዳይኖሰር ቁ. 0020 ካብ 2 027

Acrocanthosaurus

ትርጉም ስሙ: “high-spined lizard”1

ይበልዕ ነበረ: ስጋስጋ በላዕቲ ዳይኖሰራትመጀመርታ ክሬታሸስ ክሳብ ዳሕራይ ክሬታሸስ

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

ዝነበረሉ

ቅድሚ 121 ክሳብ 94 ሚልዮን ዓመት4

መጀመርታ ክሬታሸስ ክሳብ ዳሕራይ ክሬታሸስ

ፎሲላት ዝተረኽቡሉ

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

ንውሓት

ክሳብ 12 m (39 ft)1

ክብደት

ክሳብ 2.6 ቶን (5,700 lb)2

ቁመት

ክሳብ 4 m (13 ft)2

ዝለዓለ ቅልጣፈ

ኣስታት 28 ኪ.ሜ/ሰ (17 ማይል/ሰ)

ጉያ, ግምት

መዓስ እዩ ዝነበረ?

ትሪያሲክ

ጁራሲክ

ክሬታሸስ

ቅድሚ 252 ሚልዮን ዓመት20114566፣ እቲ ኣስተሮይድ

ክንደይ ዓቢ ነይሩ?

ክንደይ ነዊሕ ነይሩ?

ቁመቱ ክንደይ ነይሩ?

ክንደይ ከቢድ ነይሩ?

ከም 1.5 መካይን ዝኸብድ

ከም 2.5 መካይን ብመስርዕ ዝቖማ ዝነውሕከም 67 ባናና ተሰሪዑ ዝነውሕከም 130 ኣኽላባት ዝኸብድከም 520 ሓብሓብ ዝኸብድከም 3 ምሉኣት ክፍልታት ተመሃሮ ዝኸብድከም 6 ጻዕዳ ድባት ዝኸብድ100 ሜትሮ ኣብ 13 ካልኢት ክጎዪ ይኽእል ነበረ (እቲ ዝቐልጠፈ ሰብ 9.6 የድልዮ)

ምሳኻ ክነጻጸር Acrocanthosaurus ክንደይ ዓቢ ነይሩ?

ኣብ ብራውዘርካ ቀሊል ሕሳብ ጥራይ። ዝዕቀብ ወይ ናብ ዝኾነ ቦታ ዝለኣኽ የለን።

ክንደይ ቅልጡፍ ነይሩ?

ዝኸይድ ሰብ ኣስታት 5 ኪ.ሜ/ሰ (3 mph)

ብሽክለታ ዝጋልብ ቆልዓ ኣስታት 12 ኪ.ሜ/ሰ (7 mph)

Acrocanthosaurus ኣስታት 28 ኪ.ሜ/ሰ (17 mph)

ብጉያ ዝኸይድ ፈረስ ኣስታት 65 ኪ.ሜ/ሰ (40 mph)

ቺታ ኣስታት 100 ኪ.ሜ/ሰ (62 mph)

ዘደንቑ ነገራት

ደስ ዝብሉ ሓቅታት

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

ብAI ዝተሰርሐ ስእሊ ናይ Acrocanthosaurus — ብAI ዝተሰርሐ ስእሊ፣ Acrocanthosaurus ከመይ ይመስል ከም ዝነበረ ዘርኢ፣ ኮምፒተር ካብቲ ሳይንቲስታት ዝፈልጥዎ ዝሰርሖ። ግምት እዩ: እቲ ሓቀኛ እንስሳ ፍልይ ዝበለ ክመስል ይኽእል፣ ሓቀኛ ሕብሩ ድማ ዝፈልጦ የለን።

ንስኻ ሓቲትካ

ብዛዕባ Acrocanthosaurus ብብዝሒ ዝሕተቱ ሕቶታት

?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

ጽውጽዋይ ዘፍርስ

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

ሓቂ: 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

ንክኢላታት ዳይኖሰር

ሳይንሳዊ ስም: Acrocanthosaurus
ዝሰመዮ: Stovall and Langston 19504
ጉጅለ: ስጋ በላዕቲ ዳይኖሰራት
ስድራ / ክላድ: Carcharodontosauridae4
ምድባ: Theropoda > Allosauroidea > Carcharodontosauridae4
ዕድመ እቶም ኣኻውሕ: 121 ክሳብ 94 ሚልዮን ዓመት (Aptian / Cenomanian)4
ናይ ኣኻውሕ ንብርብራት: Antlers, Cloverly, Arundel Clay4
ሃገራት: ኣመሪካ4
መዛግብቲ ፎሲል: 14 ኣብ The Paleobiology Database4
ርኽበት: 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
ገና ዘከራኽር: 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