Haestasaurus

Leina le raya: “Haesta's lizard, named after a chieftain of the Hastings area”1

E jele: DimelaMelala-meleeleTshimologo ya Cretaceous

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

E tshetse

dimilione tsa dingwaga di le 139 go ya go 133 tse di fetileng4

Tshimologo ya Cretaceous

Difosili di fitlhetswe kwa

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

Bonako jo bogolo

e ka nna 15 km/h (9 mph)

Go taboga, kakanyo

E tshetse leng?

Triassic

Jurassic

Cretaceous

dimilione tsa dingwaga di le 252 tse di fetileng20114566, asteroiti

E ne e le bonako go le kae?

Motho yo o tsamayang e ka nna 5 km/h (3 mph)

Ngwana mo baesekeleng e ka nna 12 km/h (7 mph)

Haestasaurus e ka nna 15 km/h (9 mph)

Pitse e e sianang ka bonako e ka nna 65 km/h (40 mph)

Lengau e ka nna 100 km/h (62 mph)

dilo tse di monate

Dintlha tse di monate

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

Setshwantsho sa Haestasaurus se se dirilweng ke AI — Setshwantsho se se dirilweng ke AI sa kafa Haestasaurus e ka tswang e ne e lebega ka gone, se dirilwe ke khomputara go ya ka se borasaense ba se itseng. Ke kakanyo fela: phologolo ya nnete e ka tswa e ne e lebega ka tsela e sele, mme ga go ope yo o itseng mebala ya yona ya nnete.

o botsitse

Dipotso tse di botswang thata ka ga 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

?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

Ya baitseanape ba didino

Leina la saense: Haestasaurus
Leina le neilwe ke: Upchurch et al. 20154
Setlhopha: Melala-meleele
Lelapa / clade: Eusauropoda4
Thulaganyo: Sauropodomorpha > Sauropoda4
Bogolo jwa matlapa: 139 go ya go 133 dimilione tsa dingwaga (Berriasian / Valanginian)4
Dibopego tsa matlapa: Hastings Beds4
Dinaga: Bogosi jo bo Kopaneng4
Direkoto tsa difosili: 1 mo The Paleobiology Database4
Go fitlhelwa: 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
Go sa ntse go ganetsanwa: Scientists are not sure whether Haestasaurus was a very early member of the titanosaur group or a different type of macronarian sauropod.1

Kwa dintlha di tswang teng

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): dingwaga, mafelo, dibopego tsa matlapa, thulaganyo.

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