ካርድ ዳይኖሰር ቁ. 0772 ካብ 2 027

Haestasaurus

ትርጉም ስሙ: “Haesta's lizard, named after a chieftain of the Hastings area”1

Haestasaurus was a huge, long-necked dinosaur that munched plants in Early Cretaceous England. It is famous for its arm bones and a piece of fossilized skin, which was the first dinosaur skin ever found by scientists!4 2

ዝነበረሉ

ቅድሚ 139 ክሳብ 133 ሚልዮን ዓመት4

መጀመርታ ክሬታሸስ

ፎሲላት ዝተረኽቡሉ

Near Hastings, East Sussex, southeast England, United Kingdom4 1

ዝለዓለ ቅልጣፈ

ኣስታት 15 ኪ.ሜ/ሰ (9 ማይል/ሰ)

ጉያ, ግምት

መዓስ እዩ ዝነበረ?

ትሪያሲክ

ጁራሲክ

ክሬታሸስ

ቅድሚ 252 ሚልዮን ዓመት20114566፣ እቲ ኣስተሮይድ

ክንደይ ቅልጡፍ ነይሩ?

ዝኸይድ ሰብ ኣስታት 5 ኪ.ሜ/ሰ (3 mph)

ብሽክለታ ዝጋልብ ቆልዓ ኣስታት 12 ኪ.ሜ/ሰ (7 mph)

Haestasaurus ኣስታት 15 ኪ.ሜ/ሰ (9 mph)

ብጉያ ዝኸይድ ፈረስ ኣስታት 65 ኪ.ሜ/ሰ (40 mph)

ቺታ ኣስታት 100 ኪ.ሜ/ሰ (62 mph)

ዘደንቑ ነገራት

ደስ ዝብሉ ሓቅታት

Haestasaurus is known from a left upper arm bone (humerus), a forearm bone (ulna), a radius, and a skin impression. The skin was the first dinosaur skin ever recognized by science.1 2

Scientists created the new name Haestasaurus in 2015 because the old name Pelorosaurus was used for different bones in earlier studies.1

The fossils come from the Hastings Beds Group, which are about 139 to 133 million years old (Early Cretaceous).4

Haestasaurus had a very thick and strong ulna (forearm bone) but a slim radius next to it. That unusual combination helps scientists tell it apart from other sauropods.1

The upper arm bone had a special hook-like bump on its lower inner corner. This bump is a unique feature not seen in any other sauropod.1

Haestasaurus is classified as a macronarian, a group of sauropods that includes the huge titanosaurs. But scientists are not sure if it was a very early titanosaur or a close cousin.1

The skin impression shows small, round scales. This was the first direct evidence that sauropods had scaly skin, not feathers.2

ብAI ዝተሰርሐ ስእሊ ናይ Haestasaurus — ብAI ዝተሰርሐ ስእሊ፣ Haestasaurus 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 Haestasaurus ብብዝሒ ዝሕተቱ ሕቶታት

?How big was Haestasaurus?

Scientists are not sure of its total size because only a forelimb is known. The upper arm bone (humerus) is 599 millimetres (about 60 cm) long, the ulna 421 millimetres, and the radius 404 millimetres.3

?What did Haestasaurus eat?

Haestasaurus was a herbivore, meaning it ate plants. It was a long-necked sauropod that munched on vegetation in Early Cretaceous England.3

?Did Haestasaurus have feathers?

No, Haestasaurus had scaly skin, not feathers. Its fossilized skin shows small, round, hexagonal scales, and it was the first dinosaur skin ever found by scientists.3 1

ንክኢላታት ዳይኖሰር

ሳይንሳዊ ስም: Haestasaurus
ዝሰመዮ: Upchurch et al. 20154
ጉጅለ: ነዋሕቲ ክሳድ
ስድራ / ክላድ: Eusauropoda4
ምድባ: Sauropodomorpha > Sauropoda4
ዕድመ እቶም ኣኻውሕ: 139 ክሳብ 133 ሚልዮን ዓመት (Berriasian / Valanginian)4
ናይ ኣኻውሕ ንብርብራት: Hastings Beds4
ሃገራት: ዓባይ ብሪጣንያ4
መዛግብቲ ፎሲል: 1 ኣብ The Paleobiology Database4
ርኽበት: The fossils were discovered in 1852 near Hastings, England. The species was first named Pelorosaurus becklesii by Gideon Mantell in 1852, but later moved to a new genus, Haestasaurus, by Paul Upchurch and colleagues in 2015.1
ገና ዘከራኽር: Scientists are not sure whether Haestasaurus was a very early member of the titanosaur group or a different type of macronarian sauropod.1