Ozali dino nini? Kwizi
Etumba ya badino
Mbangu ya badino
Masano mike ya badino
Albumu ya bastika
Bilisti TOP ya badino
Kamwisa ngai!
Haestasaurus
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!42
Azalaki na bomoi ntango nini?
Azalaki na mbangu boni?
Makambo ya kosepelisa
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.12
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
Mituna oyo batunaka mingi na ntina na Haestasaurus
?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
Mpo na bayebi ya badino
- Nkombo ya siansi
- Haestasaurus
- Nkombo epesamaki na
- Upchurch et al. 20154
- Lisanga
- Nkingo milai
- Libota / klade
- Eusauropoda4
- Klasifikasio
- Sauropodomorpha > Sauropoda4
- Mbula ya mabanga
- mbula milio 139 kino 133 (Berriasian / Valanginian)4
- Milongo ya mabanga
- Hastings Beds4
- Bikolo
- Angeletere4
- Bafosile oyo ekomami
- 1 na The Paleobiology Database4
- Ntango bamonaki yango
- 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
- Naino bazali kowelana
- Scientists are not sure whether Haestasaurus was a very early member of the titanosaur group or a different type of macronarian sauropod.1
Esika makambo euti
- The Anatomy and Phylogenetic Relationships of “Pelorosaurus“ becklesii (Neosauropoda, Macronaria) from the Early Cretaceous of England | PLOS One (journals.plos.org)
- Newly detected data from Haestasaurus and review of sauropod skin morphology suggests Early Jurassic origin of skin papillae | Communications Biology (nature.com)
- Haestasaurus (en.wikipedia.org)
- Haestasaurus in The Paleobiology Database (CC BY 4.0): mbula, bisika, milongo ya mabanga, klasifikasio.
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